16:22 PST Thursday, December 30 We have recorded and located 146 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 16:05 PST Thursday, December 23 We have recorded and located 150 earthquakes in the last week. Click here to see a summary and a map. ------------------------------------------------------------------------------ 16:26 PST Thursday, December 16 We have recorded and located 171 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 04:00 PST Thursday, December 16 At 3:37 A.M., 16-Dec-2004 a light earthquake, magnitude 3.6 occurred 9 miles SSE of Pt. Dume (in Santa Monica Bay). This event was reported felt in the Santa Monica / West Los Angeles, Malibu and west San Fernando Valley areas. It is not an aftershock. Earthquakes in this size range occassionally happen in the Santa Monica Bay region. -rsd. -------------------------------------------------------------------------------- 21:19 PST Saturday, December 11 At 9:05 pm, there was a ML 3.7 event located 7 miles SSW of Big Bear City. It was reported felt in the immediate area. -------------------------------------------------------------------------------- 08:55 PST Friday, December 10 There was a ML3.3 overnight in the northern Baja area. The time was 2:49 am & the epicenter was located 41 miles south-southeast of Ocotillo CA. This quake was probably not felt in the US. -------------------------------------------------------------------------------- 16:14 PST Thursday, December 09 We have recorded and located 140 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 15:06 PST Tuesday, December 07 A ML3.5 (Mw3.6) quake at 12:54 pm today was felt in Santa Barbara & Goleta. The epicenter was located under the Santa Barbara channel 10 miles south of Santa Barbara. -------------------------------------------------------------------------------- 09:16 PST Monday, December 06 Two quakes in southern California over the weekend that might possibly have been felt, but have not been reported as felt. The first was in the Hector Mines area: a ML3.1 at 4:06 pm Saturday afternoon, 12 miles west of Ludlow. The other was a ML3.4 in northern Baja, 36 miles northeast of Ensenada. It occurred at 10:08 pm Sunday. In northern California, a Mw4.3 in the Willow Creek area, near Eureka, was widely felt. It occurred at 5:48 pm Saturday. There was also a ML3.4 Parkfield quake at 9:39 pm Friday, located 4 miles northwest of Parkfield. -------------------------------------------------------------------------------- 16:09 PST Thursday, December 02 We have recorded and located 175 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 16:14 PST Wednesday, November 24 We have recorded and located 130 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 07:51 PST Wednesday, November 24 A small quake (ML2.5) was felt just after midnight last night (12:24 am) in the Simi Valley region. The epicenter was located 7 miles northeast of Simi Valley & the focal mechanism was reverse (thrust). Central California also experienced some action overnight, in the form of a M4.4 in the Pinnacles area, southeast of Hollister. There were two M3.0 foreshocks & a large number of aftershocks, including a ML3.7. There was also a M3.0 Parkfield aftershock. -------------------------------------------------------------------------------- 08:45 PST Monday, November 22 There were a couple of feelable quakes in southern California this weekend. On Saturday afternoon, at 2:32 pm, there was a ML2.9 located offshore, 13 miles south-southwest of Carpinteria. Also, at 9:39 pm last night, there was a ML3.0 located 2 miles south-southeast of Yorba Linda, near the Santa Ana Canyon. This quake was felt in Yorba Linda, Anaheim, Diamond Bar, Orange, Chino Hills, etc. -------------------------------------------------------------------------------- 16:40 PST Thursday, November 18 We have recorded and located 188 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 08:15 PST Monday, November 15 Another small quake was felt at 7:33 am on Sunday, a ML3.0 located 5 miles north of Fontana. It was reported felt in the Inland Empire from about Chino to Redlands. Peak intensity reported was IV. -------------------------------------------------------------------------------- 18:24 PST Saturday, November 13 So far we have a little over 200 felt reports on this morning's Big Bear quake, which was actually located near the Cushenbury mine on the northern front of the San Bernardino mountains. The felt reports came from as far away as Barstow & Newberry Springs on the north & the Corona area on the south. Also of possible interest is a ML2.7 quake at 4:54 am this morning, about 11 miles northwest of Tehachapi. Also, at 5:11 pm last night, there was a ML2.6 quake about 9 miles southeast of Wrightwood. We have a couple of reports of people feeling each of these two small quakes. -------------------------------------------------------------------------------- 09:53 PST Saturday, November 13 At 9:39 am, there was a Ml4.2 event located 6 mi north of Big Bear City. We have had some "felt reports" from Barstow down to Palm Springs. -------------------------------------------------------------------------------- 07:37 PST Friday, November 12 Yesterday's Ludlow quake had a ML2.9 aftershock at 2:05 am this morning. The location was the same, 6 miles east of Ludlow. The aftershock was not felt. -------------------------------------------------------------------------------- 16:22 PST Thursday, November 11 We have recorded and located 172 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 07:12 PST Thursday, November 11 Early this morning (2:50 am), there was a ML3.7 quake in the desert 6 miles east of Ludlow. The focal mechanism is strike-slip, on an almost north-south (or east-west, your choice) plane. We have no felt reports. There were 2 foreshocks & 6 aftershocks (so far), all magnitude M2.3 or smaller. Note that there was a ML3.2 quake at this same location on Novermber 1. -------------------------------------------------------------------------------- 15:04 PST Tuesday, November 09 At 10:44 pm last night, there was a ML3.6 quake 13 miles north-northeast of Barstow. We have a few "felt reports" from Barstow, Fort Irwin, Newberry Springs & Yermo. A few minutes earlier, at 9:15 pm, a much smaller quake of ML2.2 was felt in the general area of Norwalk. Reports have come in from Lakewood, Downey, Bellflower, etc. -------------------------------------------------------------------------------- 14:26 PST Monday, November 08 A small earthquake (ML2.7) was felt this afternoon in the Riverside, San Bernardino, Redlands, Colton areas. The time was 1:56 pm & the epicenter was located 1 mile west of Loma Linda. -------------------------------------------------------------------------------- 16:22 PST Thursday, November 04 We have recorded and located 196 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 09:55 PST Monday, November 01 A ML3.2 quake occurred this morning in the eastern Mojave Desert, 6 miles east of Ludlow. The time was 6:49 am. We don't have any reports that it was felt, probably due to the sparse population in the area. There was also a ML2.7 yesterday at 11:36 am. It was located 5 miles northeast of Indio & was felt in Indio. -------------------------------------------------------------------------------- 10:55 PDT Saturday, October 30 A ML2.7 quake was felt this morning in the West Hollywood & Beverly Hills areas. It occurred at 9:07 am & was located about 1 mile east-northeast of West Hollywood. People have reported feeling it in West Hollywood, Culver City & surrounding parts of Los Angeles. -------------------------------------------------------------------------------- 17:09 PDT Thursday, October 28 We have recorded and located 232 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 15:01 PDT Wednesday, October 27 The Lucerne Valley area was lightly shaken by a ML3.8 quake this afternoon, at 2:41 pm. The epicenter was located 7 miles south-southeast of Lucerne Valley, or 7 miles north of Big Bear Lake. It was reported felt in Lucern Valley, Big Bear City, Redlands, Riverside, San Bernardino, Apple Valley, and so forth. There was a ML2.5 aftershock at 2:59 pm. -------------------------------------------------------------------------------- 07:37 PDT Tuesday, October 26 At 8:53 pm last night, a small quake was felt in the northern San Fernando Valley area (most reports from Newhall, Northridge, Granada Hills & Valencia). The quake was located 4 miles southeast of Newhall & the magnitude was ML2.8. -------------------------------------------------------------------------------- 17:42 PDT Monday, October 25 At 2:49 pm this afternoon, there was a small quake (ML2.9) 4 miles east-southeast of Yorba Linda. Most "felt reports" came from Anaheim, Orange, Placentia & Yorba Linda. -------------------------------------------------------------------------------- 11:08 PDT Friday, October 22 Yesterday evening at 7:16 pm, there was ML2.6 quake 4 miles south of Palomar Observatory (or 6 miles northwest of Lake Henshaw). We did get some "felt reports", mostly from Valley Center & Escondido, but also Fallbrook, San Marcos & Alpine. -------------------------------------------------------------------------------- 17:04 PDT Thursday, October 21 We have recorded and located 224 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 09:02 PDT Tuesday, October 19 A ML3.2 quake Anza qas felt last night. The time was 7:12 pm & the epicenter was located 10 miles east-southeast of Anza (or 22 miles south of Palm Springs). We got a few reports that it was felt in the Palm Springs/La Quinta areas. There was also a smal quake felt this morning in the Huntington Beach area. It was a ML2.4 at 7:10 am, located 2 miles west-southwest of Newport Beach. -------------------------------------------------------------------------------- 09:57 PDT Monday, October 18 A small quake was felt on Friday night in the Ojai & Ventura areas. It was a ML3.3, at 10:05 pm, located 7 miles east of Ojai. Earthquakes in that area are commonly a little deeper than they are in most areas of California. This one had a depth of 27 km. It was felt fairly widely in the Ventura, Ojai, Newbury Park & Thousand Oaks areas, with a few reports from as far as Malibu, Gorman & Santa Barbara. -------------------------------------------------------------------------------- 17:27 PDT Thursday, October 14 We have recorded and located 165 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 16:46 PDT Sunday, October 10 At 11:58am this morning, we had a M3.0 quake, 4 miles northwest of Coso Junction. We do not have any reports of this quake being felt, likely due to its remote location. If you did feel this quake, and would like to report it, you can do so by clicking here. -------------------------------------------------------------------------------- 12:45 PDT Saturday, October 09 There were a few earthquakes of interest overnight. At 8:45pm on Friday, October 8th, there was a M4.7 aftershock of the Qualey's Camp, NV quake, about 25 miles southeast of Bodie State Park. At 11:39pm, there was a M3.2 earthquake 7 miles east of Coso Junction. We do not have any felt reports due to the remote location of this quake. The last quake of interest was a M3.1, 12 miles north of Elizabeth Lake. This quake was possibly felt in Lancaster, Elizabeth Lake, and the surrounding area. If you felt this quake, and would like to report it, click here. -------------------------------------------------------------------------------- 17:02 PDT Thursday, October 07 We have recorded and located 262 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 15:08 PDT Friday, October 01 At 2:27 pm today, a ML2.7 quake (small) was felt in Lompoc. The epicenter was located 3 miles north of the town of Lompoc, near Vandenburg Village. -------------------------------------------------------------------------------- 13:02 PDT Friday, October 01 A very small quake (ML2.1) was apparently felt in the San Fernando Valley at 9:25 am this morning. The epicenter was located in Panorama City. At 12:22 pm this afternoon, there was a ML3.9 quake in Nevada, 14 miles northeast of Tokop. -------------------------------------------------------------------------------- 17:29 PDT Thursday, September 30 We have recorded and located 300 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- SUMMARY OF THE 2004 ARVIN EARTHQUAKE A M5.0 earthquake occurred in southern California on Wednesday, Sept. 28 at 3:54 p.m. located 17 miles northeast of Arvin in the southern Sierra Nevada. Because this occurred just over a day and less than 200 km southeast of the Mw6.0 Parkfield earthquake, there may be a correlation between the events. We have in the past, such as July 1986 and June-July 1992 seen moderate to large earthquakes over wide areas of California. The nature of the relationship is not obvious and this does not imply a specific forecast for the future. The Mw5.0 had a strike-slip focal mechanism, with left-lateral motion on a nodal plane striking N65W. This is opposite motion to what is normally observed for San Andreas type earthquakes. The depth of the event is about 6.5 km. This earthquake today occurred about 8 km to the north of a M4.3 earthquake that occurred 25 January 2003. The 2003 M4.3 event was part of a large swarm of earthquakes that consisted of more than 1000 smaller events. These earthquakes accommodate crustal thinning within the southern Sierra Nevada. Extension occurs in both north-south and east-west direction, causing gradual oblate flattening of the range, or extension in two perpendicular horizontal directions. The extensional deformation is associated with areas of high potential energy, and may be seismic expression of buoyancy-driven thinning of the Sierran lithosphere. -------------------------------------------------------------------------------- 17:11 PDT Wednesday, September 29 At 3:54pm local time, we had a M5.0 earthquake 17 miles NE of Arvin, CA. This is a new earthquake, and not an aftershock to the M6.0 Parkfield earthquake. This event was felt as far away as Las Vegas, Sacramento, and San Bernardino County. To see the ShakeMap for this event, please click here. To see a map of "felt" reports, or if you felt this quake, and would like to report it, click here. -------------------------------------------------------------------------------- 10:22 PDT Wednesday, September 29 The quake that is tied for the largest Parkfield aftershock has just occurred, a Mw5.0 at 10:10 am. A quick glance at the CIIM web site show it was felt as far as San Jose, Merced & Porterville. It appears to be close to the northwestern end of the rupture zone & the focal mechanism appears to be strike-slip, like the Mw6.0 mainshock & like most San Andreas earthquakes. We now know quite a bit more about yesterday's Mw6.0 earthquake. It seems to be almost an exact repeat, in reverse, of the 1966 Parkfield earthquake (the last one). In other words, yesterday's ruptured from southeast to northwest, while the 1966 quake ruptured the same section of the San Andreas fault, going the other direction. Yesterday, the probability of an event larger than 6.0 was estimated at 5 to 10%, but since the risk decays exponentially, it should be much lower today. There have been seven similar historical Parkfield earthquakes. The first one, in 1857, occurred about 12 hours before the Mw7.9 Ft. Tejon earthquake, which ruptured the San Andreas fault from Parkfield to the Cajon Pass. The other five were not followed by larger earthquakes. Yesterday's quake was the long-anticipated (on the basis of seismic history) Parkfield earthquake. Because of the density of instrumentation in the area, this quake may be the most closely observed earthquake ever! -------------------------------------------------------------------------------- 10:27 PDT Tuesday, September 28 At 10:15 am this morning, there was a Mw6.0 quake in the Parkfield area. It was followed at 10:19 by a Mw5.0, plus a number of other feelable aftershocks. These quakes are in the region monitored by the U.S. Geological Survey in Menlo Park, but we will continue to post their latest information on this site. The Community Internet Intensity Web Site indicates reports from as far as Orange County. -------------------------------------------------------------------------------- 17:10 PDT Thursday, September 23 We have recorded and located 187 earthquakes in the last week. -------------------------------------------------------------------------------- 08:19 PDT Thursday, September 23 A ML2.9 quake was late yesterday afternoon in the Bakersfield area. The time was 6:21 pm & the epicenter was located 4 miles west of Mettler, or 21 miles south of Bakersfield. There was also a ML2.7 quake in the same area at 4:29 pm yesterday. -------------------------------------------------------------------------------- 07:37 PDT Tuesday, September 21 There was a small quake felt this morning in the Diamond Bar/Chino Hills area. Magnitude was ML2.8 & the time was 1:14 am. The epicenter was in the Carbon Canyon area, 5 miles southeast of Diamond Bar. It was felt in surrounding communities, with the most reports coming from Chino Hills, Diamond Bar, Walnut, Brea, Yorba Linda & Placentia. -------------------------------------------------------------------------------- 16:35 PDT Friday, September 17 We have recorded and located 227 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 07:25 PDT Thursday, September 16 This morning at 6:29 am, there was a ML3.6 Landers aftershock, located in the eastern outskirts of Yucca Valley (1 mile east-southeast of downtown). It was widely felt in Yucca Valley, with a few reports from the Joshua Tree, Morongo Valley & greater Palm Springs areas. -------------------------------------------------------------------------------- 08:21 PDT Tuesday, September 14 There was a ML3.1 this morning in the Coso Range area, in southern Owens Valley along Rt. 395 between L.A. & Mammoth Lakes. The quake occurred at 7:41 am, 6 miles east-northeast of Coso Junction. We have no "felt reports" so far. -------------------------------------------------------------------------------- 17:00 PDT Thursday, September 09 We have recorded and located 158 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 09:36 PDT Thursday, September 09 We have just recorded a ML3.7 quake in the Antelope Valley area 10 miles northeast of Boron. The time was 8:30 am. We have a few "felt reports" from Boron & Edwards AFB. -------------------------------------------------------------------------------- 17:05 PDT Thursday, September 02 We have recorded and located 191 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 12:14 PDT Wednesday, September 01 A small quake in Encino was felt this morning, at 11:00 am. The epicenter was located at the northern edge of the Santa Monica Mtns, 1 miles south of Encino. Magnitude was ML2.0. It was reported felt in Encino, Reseda & Sherman Oaks. -------------------------------------------------------------------------------- 17:58 PDT Monday, August 30 Southern California has had another M3+ quake this afternoon: a ML3.2 19 miles north-northwest of Goldstone Lake, or 35 miles east of Ridgecrest. This is an unpopulated area in the northern Mojave desert, near the Garlock fault. There has also been a ML4.0 San Simeon aftershock, 5 miles east-northeast of San Simeon, at 5:40 pm, felt by a few people. -------------------------------------------------------------------------------- 14:02 PDT Monday, August 30 At 1:51 pm this afternoon, Wrightwood felt a small earthquake: ML3.2, located 6 miles northwest of Wrightwood. A few felt reports have come in from Wrightwood, Phelan & Lake Los Angeles. -------------------------------------------------------------------------------- 07:18 PDT Monday, August 30 I'm sure that you (in southern Cal) did not feel it, but there was a ML4.0 near the Pinnacles, 22 miles south-southeast of Hollister, at 9:30 pm on Sunday. This is the area where the Calaveras fault & the San Andreas fault diverge. Also, there was a M5.1 at 10:35 pm last night offshore of Baja California, Mexico, about 160 miles south of Ensenada. This epicenter & magnitude come from the National Earthquake Information Center. -------------------------------------------------------------------------------- 17:08 PDT Thursday, August 26 We have recorded and located 168 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 07:25 PDT Thursday, August 26 Saturday's Baja quake had a ML3.1 aftershock last night at 7:58 pm. There was also a ML2.9 quake in Baja, Mexico, at a different location 44 miles south of Ocotillo. The time for that quake was 7:17 pm. We have no reports that either of these quakes was felt. What was felt, however, was a small (ML1.8) quake in the Hollywood Hills 1 mile south-southeast of Studio City. It occurred just before 3:36 am. We have a small handful of felt reports from West Hollywood & Studio City. -------------------------------------------------------------------------------- 07:48 PDT Monday, August 23 We now have several reports that Saturday's Baja quake was felt in the southern Imperial Valley, particularly El Centro and Mexicali. On Sunday at 5:19 pm, there was also a felt earthquake, in the Oxnard area. The epicenter was located 2 miles south-southeast of Port Hueneme, or 4 miles south of Oxnard. Quite a few people along the coast from Ventura to Malibu, and inland to Westlake Village, Thousand Oaks, etc., felt it. The magnitude was ML3.1. There have been 2 aftershocks, the largest of which was a ML2.5 at 5:38 pm. Early this morning, there was a Hector Mines aftershock (of the 1999 Mw7.1 quake), located 12 miles west-southwest of Ludlow. The time was 6:22 am. The magnitude was ML3.2, plenty large enough to feel, but we have no reports so far, probably due to the sparse population in the area. -------------------------------------------------------------------------------- 18:40 PDT Saturday, August 21 A ML4.2 quake was felt in Imperial Valley early this evening. The epicenter was located in Mexico, 28 miles southeast of Calexico. The time was 6:25 pm. -------------------------------------------------------------------------------- 17:09 PDT Thursday, August 19 We have recorded and located 209 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 17:05 PDT Thursday, August 12 We have recorded and located 323 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 10:20 PDT Friday, August 06 A ML4.2 quake occurred this morning, at a fairly unusual location offshore, 227 miles west of Santa Barbara. The time was 9:28 am. So far, we have received no reports of anyone feeling it. Note that this quake is too far west to appear on the "Recent Earthquakes" maps. -------------------------------------------------------------------------------- 17:24 PDT Thursday, August 05 We have recorded and located 245 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 15:23 PDT Thursday, August 05 A ML2.5 quake in the Santa Clarita area was felt by a few people this afternoon. The time was 12:36 pm & the epicenter was located 6 miles east-northeast of Santa Clarita. Reports have come in from Canyon Country, Newhall, Saugus & Valencia. -------------------------------------------------------------------------------- 10:12 PDT Monday, August 02 At 9:28 am this morning, there was a ML3.6 quake offshore Baja, about 38 miles south-southwest of San Ysidro CA, or 45 miles south-southwest of San Diego. It may have been felt in the San Diego area. Also, yesterday at 11:03 am, we recorded a ML3.1 quake near Ocotillo. This epicenter was located 4 miles west-southwest of Ocotillo, or 29 miles west of El Centro. We have no "felt reports", probably because this is a sparsely populated area. -------------------------------------------------------------------------------- 21:43 PDT Thursday, July 29 A small quake ML3.0 was felt at 9:27 pm this evening in the Ontario, Chino, Corona & Norco areas. The epicenter was located 4 miles southeast of Ontario. -------------------------------------------------------------------------------- 17:11 PDT Thursday, July 29 We have recorded and located 289 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 13:56 PDT Wednesday, July 28 A ML3.8 quake was felt this afternoon in the Inland Empire. It occurred at 1:19 pm, 2 miles north-northeast of Fontana. We have about 300 "felt reports" so far, from Fontana, Cucamonga, Ontario, Riverside, San Bernardino & surrounding towns. The peak intensity was Modified Mercally IV. -------------------------------------------------------------------------------- 15:52 PDT Tuesday, July 27 A ML3.3 quake early this morning (4:01 am) was reported felt in Ocotillo, Boulevard, Jacumba & Jamul. The epicenter was located 16 miles southwest of Ocotillo, or about 40 miles west-southwest of El Centro. -------------------------------------------------------------------------------- 07:31 PDT Saturday, July 24 A ML4.3 earthquake at 5:55 am this morning was widely felt in the Ventura county area & as far away as Santa Barbara & Castaic. The epicenter was located 5 miles east-southeast of Carpinteria, or 10 miles northwest of Ventura. There was a ML2.0 foreshock at 1:07 am, which was not felt. All aftershocks so far have been smaller than M2.0. -------------------------------------------------------------------------------- 17:22 PDT Thursday, July 22 We have recorded and located 283 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 12:15 PDT Thursday, July 22 There was a M2.3 earthquake that occurred at 10:06 pm last night, 2 miles south of Malibu. We don't have any felt reports, but if you felt this quake, you can report it here. There was also a M3.0 that happened this morning at 11:38 am. This was felt in Loma Linda, Redlands, Riverside, Corona, San Bernardino, Lake Elsinore, Moreno Valley, Fontana, and the surrounding area. You can report this one by clicking here. -------------------------------------------------------------------------------- 15:14 PDT Tuesday, July 20 There was a M3.6 quake at 10:09 pm last night. It was located 34 miles southeast of Calexico. We haven't received any felt reports thus far. -------------------------------------------------------------------------------- 17:06 PDT Thursday, July 15 We have recorded and located 309 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 10:39 PDT Thursday, July 15 There was a very shallow M3.5 quake 12 miles north of Taft at 6:43 pm last night. The depth was 1 km, but we haven't received any felt reports so far. -------------------------------------------------------------------------------- 18:44 PDT Tuesday, July 13 Interestingly, there have been two M4+ quakes in or near our area in the space of a little more than an hour. At 4:45 pm, there was a M4.1 San Simeon aftershock, located 9 miles northeast of San Simeon. It was reported felt in the San Simeon area. The second one was a ML4.0 located just east of Coachella Valley, 10 miles east of Indio. The time was 5:53 pm. It was reported felt in Indio, La Quinta & the Palm Springs area, and as far away as San Diego. -------------------------------------------------------------------------------- 08:55 PDT Monday, July 12 A small quake (ML2.6) was felt in the northern San Fernando Valley yesterday. The time was 12:50 pm & the epicenter was located 2 miles north of San Fernando. It was felt mainly in Sylmar & Granada Hills. Another small quake, also ML2.6) occurred at 8:10 am this morning, 3 miles south-southeast of Devore or 5 miles north of Rialto. It was reported felt in San Bernardino & Riverside. -------------------------------------------------------------------------------- 06:53 PDT Friday, July 09 A small swarm has occurred in northern Mexico, about 19 miles southwest of Mexicali. The first & largest member was a ML3.6 at 9:43 pm last night. There was also a ML3.3 at 10:02 pm, a ML3.1 at 11:30 pm & a ML3.0 at 5:11 am this morning. This is a sparsely populated area & no-one has so far reported feeling any of these quakes. -------------------------------------------------------------------------------- 17:05 PDT Thursday, July 08 We have recorded and located 186 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 09:48 PDT Tuesday, July 06 There was a felt earthquake at 9:05 am: a ML3.4 located 6 miles south-southwest of Westlake Village. We have almost 400 felt reports so far, from the epicentral area, most of them from Malibu, Agoura, Calabasas, Newbury Park, Thousan Oaks, Westlake Village, Camarillo & Simi Valley. -------------------------------------------------------------------------------- 17:30 PDT Thursday, July 01 We have recorded and located 347 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 09:30 PDT Thursday, July 01 This morning at 9:24 am, we recorded a ML3.0 quake in northern Baja, about 1 miles west of Guadalupe Victoria or about 34 miles southeast of Calexico. As far as we know, it was not felt. -------------------------------------------------------------------------------- 08:04 PDT Tuesday, June 29 There was a ML3.7 quake in the southern Owens Valley early this morning, at 3:20 am. The epicenter was located in the Rose Valley area 3 miles northeast of Coso Junction. It has not been reported felt, probably due to its remote location. Since the time of the ML3.7, there have been at least 14 small aftershocks. -------------------------------------------------------------------------------- 17:11 PDT Thursday, June 24 We have recorded and located 196 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 07:54 PDT Thursday, June 24 A small quake was felt late yesterday afternoon in the Claremont area. It was a ML2.7, located in the mountains 5 miles north of Claremont. The time was 5:18 pm. We have a handful of "felt reports" from the public in Upland, San Dimas, Mount Baldy & La Verne. -------------------------------------------------------------------------------- 09:54 PDT Monday, June 21 We have another (probably unfelt) quake this morning: a ML3.0 at 9:02 am, located 7 miles east-northeast of Coachella. This is near the I-10 east of Indio, very unpopulated region. -------------------------------------------------------------------------------- 07:55 PDT Monday, June 21 At 11:03 am on Saturday, a smalle quake (ML2.5) was felt in the Culver City & surrounding areas. The epicenter was located 2 miles northwest of Inglewood, in the Newport Inglewood fault zone. It was reported felt as far away as Studio City & Torrance. Last Friday, there was a ML3.0 quake in the northern Imperial Valley, 2 miles east-northeast of Obsidian Butte, at 4:49 am. We have no felt reports on that one. -------------------------------------------------------------------------------- 17:14 PDT Thursday, June 17 We have recorded and located 284 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 10:14 PDT Thursday, June 17 At 6:09 pm last night, there was a ML3.1 quake in the southern Owens Valley area, 21 miles south of Olancha. It has not been reported felt. -------------------------------------------------------------------------------- 23:52 PDT Tuesday, June 15 There was a M2.8 earthquake at 7:32pm this evening, located one mile north-northwest of Loma Linda. This quake was felt in Loma Linda and Redlands. -------------------------------------------------------------------------------- 16:00 PDT Tuesday, June 15 A M5.2 earthquake occurred at 3:28 pm, 38 miles west-southwest of San Diego. This quake was felt as far north as Ventura, as far east as Twenty-nine Palms, and south into Baja California. If you felt this quake and would like to report it, you may do so by clicking here. We have had nearly 10,000 "felt reports" for this quake so far, with a maximum modified Mercalli of IV. There has been one M3.6 aftershock. For more information on the main event, click here. A ShakeMap was generated for this event, which can be viewed by clicking here. This quake was originally reported as two mislocated "phantom" quakes, which were quickly removed from our catalog. These two events were not actual quakes, but computer-generated locations that were erroneously reported by our real-time computer system. -------------------------------------------------------------------------------- 17:05 PDT Thursday, June 10 We have recorded and located 212 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 13:25 PDT Monday, June 07 At 11:36 am today, a small quake was felt in the San Fernando Valley. The epicenter was located 2 miles west-southwest of Reseda & the magnitude was ML2.5. It was felt by a few people in the epicentral area. -------------------------------------------------------------------------------- 17:10 PDT Thursday, June 03 We have recorded and located 251 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 08:20 PDT Thursday, June 03 There was a ML2.7 quake in the Loma Linda area at 9:23 pm last night. The epicenter was about 1 mile north-northwest fo Loma Linda. The quake was reported felt in , Redlands, Highland & Riverside. -------------------------------------------------------------------------------- 09:47 PDT Wednesday, June 02 A very small quake was felt last night at 9:05 pm. The epicenter was located about 1 mile south-southeast of Hawthorne & the magnitude was ML2.2. It was felt in the immediate epicentral area. There was a ML1.7 aftershock at 11:55 pm. -------------------------------------------------------------------------------- 09:56 PDT Tuesday, June 01 At 7:36 am this morning, there was a ML3.1 quake felt in the Inland Empire area. The epicenter was located 3 miles northwest of Big Bear City, where it was reported felt. There were also a few reports from Redlands & Lucerne Valley. -------------------------------------------------------------------------------- 17:10 PDT Thursday, May 27 We have recorded and located 264 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 06:51 PDT Monday, May 24 A small quake (ML2.6) was slightly felt at 10:46 pm on Friday in Lakewood, Downey & surrounding towns. The epicenter was located about 2 miles south of Downey. -------------------------------------------------------------------------------- 17:55 PDT Thursday, May 20 We have recorded and located 239 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 07:43 PDT Monday, May 17 At 12:18 pm on Sunday, there was a ML2.5 quake felt in the Culver City area. It was located 2 miles southwest of the Baldwin Hills, in or near the complex Newport-Inglewood fault zone. This quake was initially located by our automatic software to be just offshore of Santa Monica, with a magnitude of ML2.7, illustrating that "robots" are not perfect. Seismograms contain a fair amount of "noise" in addition to the earthquake records, including disturbances due to traffic, wind blowing on structures & trees, etc. Sometimes the automatic "P-picker" (which picks the P waves & the S waves, too) has trouble telling the difference, thus throwing the location off a bit. Yesterday's quake was felt in the West L.A. area, Santa Monica, Culver City and Beverly Hills. -------------------------------------------------------------------------------- 17:46 PDT Thursday, May 13 We have recorded and located 243 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 09:09 PDT Thursday, May 13 Residents of the Hemet, Idyllwild and Palm Springs areas felt a ML3.1 quake last night at 11:04 pm. The epicenter was located in the complex San Jacinto fault zone 7 miles south of Idyllwild. It was followed by more than 15 tiny aftershocks, many of which are so small that they are mislocated by the automatic software. This produces a false scattering on the "Recent Earthquake Activity" maps. Check the web site again this afternoon & they should all have their correct locations. -------------------------------------------------------------------------------- 07:21 PDT Wednesday, May 12 There was a ML3.2 late yesterday afternoon, at 4:37 pm. The epicenter was located offshore, 22 miles south-southwest of Malibu. The ML3.2 was followed 11 minutes later by a ML2.2 aftershock. -------------------------------------------------------------------------------- 13:01 PDT Monday, May 10 A small earthquake (M2.0) was felt this morning in the Pasadena, Glendale & Burbank areas. The time was 11:25 am & the epicenter was located 1 miles north-northeast of Glendale. -------------------------------------------------------------------------------- 02:19 PDT Sunday, May 09 At 1:57am, there was a M4.4 earthquake just offshore, 10 miles WSW of Isla Vista. This quake was felt sharply in the epicentral area of Isla Vista, Goleta, and Santa Barbara. It was felt as far north as San Luis Obisbo, and as far south as Torrance. The maximum intensity reported was Modified Mercalli IV. Click here to view the ShakeMap for this event. -------------------------------------------------------------------------------- 17:37 PDT Thursday, May 06 We have recorded and located 244 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 17:12 PDT Thursday, April 29 We have recorded and located 233 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 13:01 PDT Tuesday, April 27 Ooops. We just had another at the same location: 1 mile north-northwest of Loma Linda. The magnitude was ML3.0 & the time was 12:21 pm. It was felt in the same areas as the earlier ML2.7 was. -------------------------------------------------------------------------------- 12:03 PDT Tuesday, April 27 There was a small quake late this morning near Loma Linda. The magnitude was ML2.7 & the time was 10:15 am. It seems to have been felt in Loma Linda, San Bernardino, Riverside & Redlands. -------------------------------------------------------------------------------- 16:59 PDT Thursday, April 22 We have recorded and located 204 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 11:35 PDT Tuesday, April 20 Early this morning, at 5:41 am, there was a ML3.1 quake offshore, between Palos Verdes & Catalina Island. The epicenter was located in the ocean floor 14 miles south of Rancho Palos Verdes. It was reported felt slightly on Catalina Island & in San Pedro. -------------------------------------------------------------------------------- 14:18 PDT Friday, April 16 At 1:55 pm this afternoon, there was a ML2.7 quake in the vicinity of Santa Maria. The epicenter was located 8 miles north-northeast of Los Alamos or 13 miles east-southeast of Santa Maria. So far, there have been no "felt reports". -------------------------------------------------------------------------------- 17:18 PDT Thursday, April 15 We have recorded and located 212 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 12:17 PDT Thursday, April 15 Last night (Wednesday) at 7:28pm a M3.4 earthquake occurred 1 mile northwest of Beaumont. It was felt mostly to the south with a report coming from as far as Oceanside. The maximum intensity reported was Modified Mercally IV. -------------------------------------------------------------------------------- 08:28 PDT Monday, April 12 On Sunday afternoon, at 1:40 pm, there was a ML3.0 quake 9 miles south-southwest of Taft, or 37 miles southwest of Bakersfield. We do not have any felt reports, but it may have been felt in the epicentral area. -------------------------------------------------------------------------------- 17:18 PDT Thursday, April 08 We have recorded and located 249 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 17:05 PDT Thursday, April 08 There was yet another quake this morning, at 11:19AM. This one was a M2.8, located 4 miles north of Big Bear City (6 miles NNE of Big Bear Lake). It was reported felt in the epicentral area. Peak intensity was Modified Mercalli II. -------------------------------------------------------------------------------- 10:10 PDT Thursday, April 08 This morning at 5:53AM, there was a M2.9 quake located just offshore, 9 miles west of Manhattan Beach. This quake was reported felt from Long Beach to Rancho Palos Verdes, and from Canoga Park to Gardena. Maximum intensity reported was Modified Mercally III. We also had a M3.2 quake at 8:46AM this morning, 14 miles SSE of Salton City. We have no felt reports as of yet, but this may have been felt in the area around Salton City. -------------------------------------------------------------------------------- 14:05 PDT Monday, April 05 The latest M3+ quake occurred at 1:38 pm today, 8 miles northwest of Palomar Observatory, or about 10 miles east-southeast of Temecula. The magnitude was ML3.4. We are getting felt reports from Temecula, Escondido, Valley Center & surrounding towns. Peak intensity seems to be Modified Mercalli IV. -------------------------------------------------------------------------------- 09:34 PDT Monday, April 05 We experienced a pair of ML3+ quakes this morning. The first was a ML3.0 near Big Bear Lake, at 3:27 am. The epicenter was located 4 miles south-southeast of the town of Big Bear Lake. It was felt in Big Bear City, Loma Linda & a few other places. Maximum intensity reported was Modified Mercally III. The other quake was a ML3.3 at 7:25 am this morning, located 1 mile west-southwest of Loma Linda. It was pretty widely felt in the San Bernardino, Riverside & Loma Linda areas. Peak intensity was also III. -------------------------------------------------------------------------------- 15:17 PST Friday, April 02 There was a ML3.2 quake at 2:51 pm this afternoon, located in the Mojave Desert 17 miles west of Goldstone Lake. It is unlikely that very many people felt this quake, due to its remote location. -------------------------------------------------------------------------------- 16:35 PST Thursday, April 01 We have recorded and located 291 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 07:54 PST Wednesday, March 31 Yesterday at 3:33 pm there was a ML2.9 quake (feelable size)in the Sierras 14 miles west-northwest of Inyokern. Later, at 8:57 pm, there was a ML3.2 at a different location in the Sierras, 11 miles west-southwest of Olancha. We have a few isolated "felt reports" on both of them. -------------------------------------------------------------------------------- 11:05 PST Sunday, March 28 A ML3.9 quake occurred late last night in the southern Sierras. The epicenter was locate 11 miles southwest of Olancha & the time was 11:20 pm. It was reported felt in the Little Lake, Lake Isabella & surrounding areas. There was a ML2.8 aftershock at 6:08 am this morning. -------------------------------------------------------------------------------- 12:39 PST Friday, March 26 There was a ML3.2 quake at 9:10 this morning, located in the San Jacinto fault zone 6 miles north-northeast of Ocotillo Wells. We don't have any reports that it was felt. -------------------------------------------------------------------------------- 16:11 PST Thursday, March 25 We have recorded and located 242 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 19:30 PST Monday, March 22 A M2.9 quake occurred at 5:51 pm this evening, located 1 mile NNE of Los Angeles Airport, in El Segundo. We have received "felt reports" from Santa Monica to Long Beach, and as far east as La Habra. Peak intensity was Modified Mercalli IV. -------------------------------------------------------------------------------- 07:13 PST Monday, March 22 Two small quakes of interest occurred over the weekend. The first was a ML3.2 at 8:55 pm on Friday, which took place 6 miles east-southest of Anza. It was reported felt in the epicentral area: Anza, Idyllwild, Mountain Center, Palm Desert, La Quinta, Cathedral City, Indian Wells & Indio. The second quake was a ML3.1 at 3:23 am on Sunday, 13 miles east-southeast of Ocotillo, near the U.S./Mexico border. It was not reported felt. -------------------------------------------------------------------------------- 07:25 PST Friday, March 19 Late yesterday afternoon, at 5:09 pm, the Big Bear area experienced a ML3.5 earthquake. It was felt in the epicentral area & as far as San Bernardino, Riverside & Victorville. Peak intensity was Modified Mercalli IV. The epicenter was located 5 miles north-northwest of the town of Big Bear Lake. There have been a small handful of aftershocks, including a pair of ML2.5's that might have been felt. -------------------------------------------------------------------------------- 16:18 PST Thursday, March 18 We have recorded and located 295 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 10:58 PST Tuesday, March 16 Northern Imperial Valley experienced an earthquake swarm last night, between about 4 pm & 6 pm. The largest events were a ML3.5 at 4:30 pm, a ML3.6 at 4:33 pm & a ML3.4 at 4:55 pm. The epicenters were all about 4 miles north-northeast of Obsidian Butte, at the eastern edge of the Salton Sea, in the Brawley Seismic Zone. Small earthquakes are also occurring along the Imperial fault about 5 miles south-southwest of Holtville. The largest of these is a ML2.4 at 11:37 am yesterday. -------------------------------------------------------------------------------- 16:19 PST Thursday, March 11 We have recorded and located 205 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 15:59 PST Thursday, March 04 We have recorded and located 155 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 09:05 PST Thursday, March 04 A ML2.9 quake at 4:35 am this morning was felt in the Orange County area. The epicenter was located 1 mile west-northwest of Placentia. Most of the "felt reports" came from Brea, Fullerton, Placentia & Yorba Linda. Peak intensity was Modified Mercalli IV. -------------------------------------------------------------------------------- 01:18 PST Friday, February 27 At 11:37 PM on Thursday, there was a ML3.1 quake 1 mile from Loma Linda. It was felt throughout the San Bernardino & Riverside areas & in Wrightwood. Maximum intensity was Modified Mercalli III. -------------------------------------------------------------------------------- 16:14 PST Thursday, February 26 We have recorded and located 202 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 15:08 PST Wednesday, February 25 At 2:23 pm today, there was a ML3.6 quake in the San Jacinto fault zone, 5 miles east of Nuevo. The quake was widely felt in the Inland Empire & as far south as Temecula. Most of the reports came from Perris, Hemet & San Jacinto. The peak intensity was Modified Mercalli level IV. -------------------------------------------------------------------------------- 19:26 PST Saturday, February 21 On Friday night at 7:39 pm, a small (magnitude ML2.8) quake was felt in the South Bay area. The epicenter was located 1 miles north of Manhattan Beach or 1 mile south of El Segundo. It was felt through the whole South Bay region from Santa Monica to Torrance, with a peak intensity near the epicenter of Modified Mercalli IV. There were several small aftershocks, including a ML2.6 at 9:16 pm the same evening. -------------------------------------------------------------------------------- 16:22 PST Thursday, February 19 We have recorded and located 213 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 10:52 PST Saturday, February 14 A small cluster of earthquakes occurred this morning in the southern San Joaquin Valley. They were located about 9 miles west of Mettler, or 11 miles west-northwest of Wheeler Ridge. (Mettler is where the Interstate 5 splits with the 99, north of the Grapevine.) The largest quake & the only one reported felt was a ML4.3 at 4:43 am. "Felt reports" came from as far as Lompoc, Buellton, Ventura & Palmdale; most were from the Frazier Park & Taft areas. ------------------------------------------------------------------------------- 16:26 PST Thursday, February 12 We have recorded and located 176 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 08:52 PST Monday, February 09 At 2:57 pm on Saturday, there was a small quake in the Corona area. Magnitude was M3.0 & the epicenter was located 7 miles south of El Cerrito or 10 miles east-southeast of Corona. The quake was felt as far away at Riverside & San Clemente. -------------------------------------------------------------------------------- 16:16 PST Thursday, February 06 We have recorded and located 159 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 14:51 PST Monday, February 02 An earthquake this morning 4 miles west-southwest of Valencia was felt in the epicentral area & in northern San Fernando Valley. The time was 11:41 am. -------------------------------------------------------------------------------- 16:15 PST Thursday, January 29 We have recorded and located 193 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 10:09 PST Monday, January 26 At 9:00 am this morning, there was a M3.1 Hector Mines aftershock in a remote area 11 miles northwest of Ludlow, in the Mojave Desert. We do not have any "felt reports" on it, probably due to its remote location. There was also a ML2.5 this morning at 9:07 am, located in northeast Pasadena, near the border with Sierra Madre. We have some reports that the quake was felt in Pasadena, Altadena, La Canada & Monterey Park. -------------------------------------------------------------------------------- 16:06 PST Thursday, January 22 We have recorded and located 203 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 10:07 PST Tuesday, January 20 A pair of ML2.8 quake occurred this morning in the Placerita Canyon area, 4 miles east of Newhall. The times were 9:21 am and 9:22 am. We have reports that the quakes were felt in Canyon Country, Valencia & the northern San Fernando Valley. -------------------------------------------------------------------------------- 16:21 PST Thursday, January 15 We have recorded and located 188 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 14:24 PST Friday, January 09 There was a M3.1 earthquake at 11:34 pm last night, located 16 miles west-southwest of Simmler. We don't have any "felt reports", probably due to the remote location of the quake. We had a M3.0 earthquake this morning at 5:00 am, 9 miles west of Tehachapi. The quake was felt in Tehachapi and Caliente. There were also several felt reports for what appears to be a sonic boom in the Los Angeles area, at 10:32 am this morning. We have reports from as far west as Ventura, as far north as Simi Valley, and as far south as Long Beach. -------------------------------------------------------------------------------- 17:11 PST Thursday, January 08 We have recorded and located 185 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 07:03 PST Wednesday, January 07 The coastal area from Oceanside to San Diego may have experienced sonic booms yesterday afternoon at about 4:25 pm. In any case, we don't see any earthquakes to reflect all the felt reports that we got. -------------------------------------------------------------------------------- 08:43 PST Monday, January 05 Early Saturday morning, there was a M3.0 quake in the Valencia area that was felt. The time was 1:17 am & the epicenter was located 4 miles west-southwest of Valencia. It was felt along the I5 corridor in the Valencia area & in the San Fernando Valley. -------------------------------------------------------------------------------- 15:22 PST Friday, January 02 We have recorded and located 228 earthquakes in the last week. Click here to see a summary and a map. -------------------------------------------------------------------------------- 11:02 PST Friday, January 02 Very early yesterday (New Years) morning, there was a ML3.2 quake in the Ridgecrest area. The time was 1:00 am & the epicenter was located 5 miles east of Ridgecrest. Perhaps residents were still partying too hard to feel it. -------------------------------------------------------------------------------- ==========================================================================