Southern California Earthquakes in the Past Week
Nick Scheckel
Seismological Laboratory
Sue Hough, U. S. Geological Survey
California Institute of Technology
August 30, 2007
This report covers the seven day period ending 17:00 on August 30,2007. During this period we detected and analyzed 280 earthquakes.
The table below lists the quakes during the past week that were M2.0 or larger in the central part of the coverage area. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed.
Mag. PST Date PST Time Lat. Long. Depth Descriptive location
-------------------------------------------------------------------------------------------
10272057 2.4 2007/08/23 23:29:58 36 8.4 N 117 54.6 W 3.1 11 km ( 7 mi) NNE of Coso Junction, CA
10272105 2.0 2007/08/24 06:05:33 36 18.0 N 118 21.0 W 6.0 31 km (19 mi) W of Olancha, CA
10272133 2.4 2007/08/24 09:11:51 32 16.5 N 115 13.2 W 6.0 51 km (32 mi) SSE of Calexico, CA
10272137 2.5 2007/08/24 09:13:34 32 19.3 N 115 13.4 W 6.0 46 km (29 mi) SSE of Calexico, CA
10272201 2.1 2007/08/24 17:57:54 32 17.2 N 115 19.3 W 6.0 45 km (28 mi) SSE of Calexico, CA
10272229 2.0 2007/08/25 01:09:25 36 8.7 N 117 54.8 W 1.5 12 km ( 7 mi) NNE of Coso Junction, CA
10272241 2.4 2007/08/25 02:29:57 36 8.9 N 117 54.5 W 3.0 12 km ( 8 mi) NNE of Coso Junction, CA
10272249 2.2 2007/08/25 03:30:13 34 27.4 N 120 49.5 W 12.7 21 km (13 mi) SW of Pt. Arguello, CA
10272317 2.7 2007/08/25 14:09:59 33 59.4 N 117 11.1 W 16.7 7 km ( 5 mi) S of Redlands, CA
10272373 2.2 2007/08/25 19:42:06 32 7.6 N 115 48.9 W 1.5 67 km (42 mi) SSW of Calexico, CA
10272433 2.3 2007/08/26 02:12:38 34 53.0 N 120 42.4 W 0.0 4 km ( 2 mi) WSW of Pt. Sal, CA
10272513 2.0 2007/08/26 11:52:34 32 59.1 N 116 18.6 W 4.8 24 km (15 mi) SW of Ocotillo Wells, CA
10272781 3.3 2007/08/27 15:31:15 36 8.7 N 117 54.7 W 3.2 12 km ( 7 mi) NNE of Coso Junction, CA
10272801 2.1 2007/08/27 16:50:12 36 8.8 N 117 54.3 W 4.1 12 km ( 7 mi) NNE of Coso Junction, CA
10272845 2.5 2007/08/27 23:07:52 34 1.3 N 117 12.2 W 13.2 4 km ( 3 mi) SW of Redlands, CA
10272961 2.2 2007/08/28 09:37:06 35 21.8 N 118 26.5 W 9.8 26 km (16 mi) N of Tehachapi, CA
10272981 2.1 2007/08/28 11:09:28 32 4.1 N 115 49.1 W 7.0 73 km (46 mi) SSW of Calexico, CA
10273257 2.4 2007/08/28 14:13:43 35 54.3 N 115 4.6 W 6.0 108 km (67 mi) E of Shoshone, CA
10273333 2.0 2007/08/28 18:27:12 36 8.6 N 117 54.1 W 4.2 12 km ( 7 mi) NNE of Coso Junction, CA
10273353 3.6 2007/08/28 21:13:48 33 6.3 N 116 3.1 W 11.9 8 km ( 5 mi) ESE of Ocotillo Wells, CA
10273361 3.0 2007/08/28 21:31:47 35 15.5 N 118 35.2 W 5.7 19 km (12 mi) NW of Tehachapi, CA
10273393 2.3 2007/08/29 01:19:46 36 8.6 N 117 54.2 W 3.8 12 km ( 7 mi) NNE of Coso Junction, CA
10273865 2.3 2007/08/29 10:27:25 36 17.4 N 118 19.5 W 2.2 29 km (18 mi) W of Olancha, CA
10274125 2.0 2007/08/29 21:21:06 34 36.6 N 118 53.6 W 3.0 21 km (13 mi) S of Gorman, CA
10274145 2.4 2007/08/29 22:09:56 34 7.8 N 117 27.9 W 4.8 4 km ( 2 mi) NW of Fontana, CA
Felt weakly in the epicentral area.
10274201 3.4 2007/08/30 02:53:08 32 46.1 N 117 20.2 W 10.6 8 km ( 5 mi) W of Mission Beach, CA
Felt from Carlsbad to the Mexican border.
10274237 3.3 2007/08/30 06:08:01 34 36.3 N 116 17.7 W 4.1 52 km (32 mi) N of Joshua Tree, CA
10274593 2.1 2007/08/30 10:10:12 34 36.2 N 116 17.8 W 4.5 52 km (32 mi) N of Joshua Tree, CA
10274793 2.7 2007/08/30 14:36:44 32 46.3 N 117 20.0 W 10.5 8 km ( 5 mi) W of Mission Beach, CA
Comments Off
Three quakes of interest happened overnight. The first was a ML2.4 just before 10:10 pm last night, located 2 miles north of Fontana. It was reported felt by a few people in Fontana & Rancho Cucamonga.
A M3.4 quake occurred at 2:53 am, offshore 11 miles west-northwest of San Diego. It was reported felt in the San Diego & La Jolla areas, with a few reports from as far as Carlsbad & Spring Valley.
A third quake of the same magnitude (ML3.4) at 6:08 am did not attract much attention due to its location in the Hector Mines aftershock zone 11 miles southwest of Ludlow. The time was 6:08 am.
Comments Off
Two small quakes Tuesday evening were reported felt by a few people. The one at 9:13 pm was a ML3.7, located 5 miles east-southeast of Ocotillo Wells. It was reported felt in Boulevard, Salton City, Julian, Poway & even as far away as San Diego & Fallbrook, but only be a few people.
The other one was a ML2.9 at 9:31 pm, located 12 miles northwest of Tehachapi. It was reported felt in Tehachapi itself.
Comments Off
Southern California Earthquakes in the Past Week
Nick Scheckel
Seismological Laboratory
Sue Hough, U. S. Geological Survey
California Institute of Technology
August 24, 2007
This report covers the seven day period ending 17:00 on August 23, 2007. During this period we detected and analyzed 219 earthquakes.
The table below lists the quakes during the past week that were M2.0 or larger in the central part of the coverage area. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed.
Mag. PST Date PST Time Lat. Long. Depth Descriptive location
-------------------------------------------------------------------------------------------
14313892 2.1 2007/08/16 22:34:48 32 12.2 N 115 51.0 W 7.0 61 km (38 mi) SSE of Ocotillo, CA
14313896 2.4 2007/08/16 23:27:58 33 27.7 N 116 53.1 W 12.2 12 km ( 7 mi) N of Palomar Observatory, CA
14313928 2.5 2007/08/17 03:08:14 33 3.8 N 117 49.7 W 0.2 44 km (27 mi) WSW of Oceanside, CA
14314112 2.1 2007/08/18 01:33:04 34 14.9 N 119 41.2 W 5.7 19 km (12 mi) S of Santa Barbara, CA
14314160 2.1 2007/08/18 10:30:45 33 51.3 N 117 5.3 W 14.8 10 km ( 6 mi) NNE of Perris, CA
14314164 2.1 2007/08/18 11:19:13 32 10.9 N 115 31.7 W 6.0 54 km (34 mi) S of Calexico, CA
14314264 2.1 2007/08/19 05:14:47 32 16.5 N 115 22.1 W 7.5 45 km (28 mi) SSE of Calexico, CA
14314268 2.1 2007/08/19 05:58:58 32 10.5 N 115 20.9 W 4.3 57 km (35 mi) SSE of Calexico, CA
14314428 2.1 2007/08/20 01:21:51 32 5.4 N 115 49.7 W 6.5 72 km (44 mi) SSW of Calexico, CA
14314512 2.1 2007/08/20 12:50:51 32 36.7 N 117 28.0 W 12.4 27 km (17 mi) SW of Mission Beach, CA
14314552 2.0 2007/08/20 16:17:21 32 23.3 N 115 21.6 W 7.0 34 km (21 mi) SSE of Calexico, CA
14314588 2.5 2007/08/20 20:57:42 32 46.0 N 118 22.6 W 13.7 7 km ( 4 mi) SSW of San Clemente Is.
14314624 2.1 2007/08/21 00:45:21 32 59.7 N 116 18.5 W 4.3 23 km (14 mi) SW of Ocotillo Wells, CA
14314676 2.4 2007/08/21 08:03:31 34 3.2 N 117 15.5 W 18.4 1 km ( 0 mi) NW of Loma Linda, CA
14314680 2.3 2007/08/21 08:43:09 33 24.9 N 116 52.3 W 5.8 7 km ( 4 mi) N of Palomar Observatory, CA
10271609 2.8 2007/08/21 12:57:39 32 18.9 N 115 13.9 W 0.1 46 km (29 mi) SSE of Calexico, CA
10271625 2.7 2007/08/21 14:55:40 33 17.8 N 116 46.4 W 14.2 7 km ( 4 mi) N of Lake Henshaw, CA
10271629 2.5 2007/08/21 14:58:19 33 17.8 N 116 46.4 W 14.5 7 km ( 4 mi) N of Lake Henshaw, CA
10271697 2.2 2007/08/22 00:12:38 32 59.7 N 116 18.5 W 4.4 23 km (14 mi) SW of Ocotillo Wells, CA
10271773 2.6 2007/08/22 09:24:02 32 40.6 N 116 2.5 W 9.1 8 km ( 5 mi) SW of Ocotillo, CA
10271877 2.3 2007/08/22 22:01:22 32 7.3 N 115 49.5 W 0.0 68 km (42 mi) SSW of Calexico, CA
10271917 2.4 2007/08/23 02:36:36 36 10.0 N 118 11.3 W 9.9 21 km (13 mi) SW of Olancha, CA
10271997 2.7 2007/08/23 13:13:53 35 48.9 N 116 55.4 W 3.1 41 km (25 mi) E of Trona, CA
10272033 2.9 2007/08/23 16:48:57 33 4.8 N 116 3.4 W 12.4 10 km ( 6 mi) SE of Ocotillo Wells, CA
Comments Off
Southern California Earthquakes in the Past Week
Anthony Guarino
Seismological Laboratory
Sue HoughU. S. Geological Survey
California Institute of Technology
August 16, 2007
This report covers the seven day period ending 17:00 on August 16, 2007. During this period we detected and analyzed 214 earthquakes.
The table below lists the quakes during the past week that were M2.0 or larger in the central part of the coverage area. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed.
Mag. PST Date PST Time Lat. Long. Depth Descriptive location
-------------------------------------------------------------------------------------------
14312384 2.9 2007/08/09 17:16:35 33 1.1 N 116 28.9 W 8.4 13 km ( 8 mi) ESE of Julian, CA
Felt in Julian and surrounding area
14312468 2.2 2007/08/10 05:00:28 33 56.0 N 116 17.4 W 5.6 20 km (12 mi) E of Desert Hot Springs, CA
14312492 2.0 2007/08/10 06:40:16 36 8.4 N 117 54.3 W 4.6 11 km ( 7 mi) NNE of Coso Junction, CA
14312524 2.1 2007/08/10 09:41:25 33 35.3 N 116 40.9 W 4.0 4 km ( 2 mi) NNW of Anza, CA
14312560 3.0 2007/08/10 10:30:04 36 5.2 N 117 53.4 W 4.2 7 km ( 4 mi) NE of Coso Junction, CA
14312584 2.1 2007/08/10 11:41:00 32 53.1 N 115 46.5 W 9.8 22 km (14 mi) SW of Westmorland, CA
14312596 3.0 2007/08/10 13:13:41 36 6.6 N 117 53.6 W 4.7 9 km ( 5 mi) NE of Coso Junction, CA
14312612 2.1 2007/08/10 13:32:29 36 6.4 N 117 53.4 W 4.9 9 km ( 5 mi) NE of Coso Junction, CA
14312620 2.9 2007/08/10 14:20:19 36 6.4 N 117 53.5 W 5.9 8 km ( 5 mi) NE of Coso Junction, CA
14312632 2.1 2007/08/10 14:21:10 32 20.4 N 115 12.4 W 6.0 45 km (28 mi) SE of Calexico, CA
14312668 2.2 2007/08/10 15:02:44 33 50.4 N 116 36.2 W 14.5 6 km ( 4 mi) WNW of Palm Springs, CA
14312680 2.4 2007/08/10 16:37:12 36 6.4 N 117 53.3 W 5.8 9 km ( 5 mi) NE of Coso Junction, CA
14312720 2.0 2007/08/10 23:46:56 32 9.8 N 115 52.1 W 6.1 65 km (40 mi) S of Ocotillo, CA
14312984 2.3 2007/08/12 17:16:47 32 46.0 N 115 25.6 W 13.0 12 km ( 8 mi) ESE of El Centro, CA
14313124 2.3 2007/08/13 11:29:26 34 38.9 N 116 39.3 W 8.6 35 km (22 mi) NE of Lucerne Valley, CA
14313196 2.3 2007/08/13 17:12:50 33 21.0 N 116 13.5 W 12.7 17 km (11 mi) NE of Borrego Springs, CA
14313216 2.6 2007/08/13 19:34:28 33 9.7 N 115 39.0 W 8.5 2 km ( 1 mi) SW of Obsidian Butte, CA
14313248 2.4 2007/08/14 01:11:12 32 10.3 N 115 51.7 W 6.0 64 km (40 mi) S of Ocotillo, CA
14313300 2.6 2007/08/14 03:39:19 35 49.4 N 118 32.1 W 6.2 22 km (13 mi) NNW of town of Lake Isabella, CA
14313384 2.7 2007/08/14 09:01:22 34 18.6 N 116 50.9 W 5.8 5 km ( 3 mi) N of Big Bear City, CA
14313432 2.5 2007/08/14 10:42:01 32 55.3 N 116 16.2 W 11.6 28 km (17 mi) SSW of Ocotillo Wells, CA
14313444 2.3 2007/08/14 11:31:02 32 55.3 N 116 15.9 W 11.5 28 km (17 mi) SSW of Ocotillo Wells, CA
14313456 2.5 2007/08/14 12:35:47 32 41.2 N 116 2.0 W 6.5 7 km ( 4 mi) SW of Ocotillo, CA
14313524 2.3 2007/08/14 16:52:37 36 6.3 N 117 54.7 W 4.8 7 km ( 5 mi) NNE of Coso Junction, CA
14313604 2.3 2007/08/15 06:02:25 32 51.3 N 115 24.4 W 19.6 15 km ( 9 mi) ENE of El Centro, CA
14313608 3.0 2007/08/15 07:21:34 36 6.3 N 117 54.1 W 6.7 8 km ( 5 mi) NNE of Coso Junction, CA
14313648 2.4 2007/08/15 10:06:52 32 54.0 N 115 48.3 W 10.0 23 km (14 mi) SW of Westmorland, CA
14313732 2.2 2007/08/15 22:17:57 32 25.8 N 115 10.6 W 6.6 40 km (25 mi) SE of Calexico, CA
14313828 3.5 2007/08/16 12:23:23 34 17.9 N 118 36.7 W 5.0 5 km ( 3 mi) N of Chatsworth, CA
Felt throughout Los Angeles and north Orange County.
14313852 2.4 2007/08/16 15:22:23 35 20.9 N 118 27.4 W 8.5 24 km (15 mi) N of Tehachapi, CA
%
Comments Off
At 12:23 PM today, there was a M3.5 aftershock of the M4.5 Chatsworth earthquake we experienced last week. It was located in the same area as the mainshock, and the M3.5 aftershock was felt over a wide area of the SF Valley. It was felt as far away as south Los Angeles and Orange County. and as far north as Gorman. If you felt this quake, and would like to report it, click here.. The image for the ShakeMap for this quake is shown below:
Comments Off
Southern California Earthquakes in the Past Week
Anthony Guarino
Seismological Laboratory
Sue HoughU. S. Geological Survey
California Institute of Technology
August 9, 2007
This report covers the seven day period ending 17:00 on August 09, 2007. During this period we detected and analysed 228 earthquakes.
The table below lists the quakes during the past week that were M2.0 or larger in the central part of the coverage area. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed.
Mag. PST Date PST Time Lat. Long. Depth Descriptive location
-------------------------------------------------------------------------------------------
14311100 2.8 2007/08/02 20:42:03 33 3.0 N 117 50.9 W 2.0 46 km (29 mi) WSW of Oceanside, CA
14311148 2.2 2007/08/03 02:25:50 35 3.7 N 118 56.9 W 8.0 6 km ( 4 mi) N of Wheeler Ridge, CA
14311156 2.2 2007/08/03 02:52:09 35 3.1 N 118 56.4 W 7.9 5 km ( 3 mi) N of Wheeler Ridge, CA
14311164 2.1 2007/08/03 03:39:49 35 3.3 N 118 57.4 W 12.9 6 km ( 4 mi) NNW of Wheeler Ridge, CA
14311208 2.1 2007/08/03 09:41:59 32 36.6 N 115 37.4 W 11.7 14 km ( 9 mi) WSW of Calexico, CA
14311320 2.2 2007/08/04 03:10:07 32 29.2 N 115 12.0 W 36.7 34 km (21 mi) SE of Calexico, CA
14311364 2.0 2007/08/04 08:03:38 34 18.5 N 116 51.0 W 3.0 5 km ( 3 mi) N of Big Bear City, CA
14311528 2.1 2007/08/05 09:04:17 33 5.7 N 116 3.2 W 5.6 9 km ( 6 mi) SE of Ocotillo Wells, CA
14311780 2.0 2007/08/07 03:00:35 33 8.4 N 116 5.7 W 11.8 3 km ( 2 mi) E of Ocotillo Wells, CA
14312040 2.1 2007/08/08 13:10:09 33 18.9 N 116 12.3 W 5.6 17 km (11 mi) ENE of Borrego Springs, CA
14312160 4.6 2007/08/09 00:58:49 34 18.0 N 118 37.2 W 7.6 5 km ( 3 mi) NNW of Chatsworth, CA
Felt widely throughout Los Angeles and the San Fernando Valley. To view the special report, click here.
14312180 2.0 2007/08/09 01:24:32 32 42.3 N 115 56.8 W 7.6 6 km ( 3 mi) SE of Ocotillo, CA
14312224 2.3 2007/08/09 05:41:14 32 25.5 N 115 7.4 W 0.0 44 km (27 mi) SE of Calexico, CA
14312228 2.4 2007/08/09 05:51:21 32 26.8 N 115 7.2 W 11.5 43 km (27 mi) SE of Calexico, CA
14312232 2.3 2007/08/09 06:10:34 33 45.4 N 116 6.9 W 1.3 11 km ( 7 mi) ENE of Indio, CA
14312248 2.5 2007/08/09 08:22:16 32 21.0 N 115 3.1 W 27.0 55 km (34 mi) SE of Calexico, CA
14312252 2.3 2007/08/09 08:27:52 32 27.5 N 115 7.7 W 25.3 42 km (26 mi) SE of Calexico, CA
Comments Off
There was a M4.6 earthquake in the San Fernando Valley at 12:58AM this morning, located 4 miles NNW of Chatsworth, CA. This quake was felt widely throughout the San Fernando Valley. If you felt this quake, and would like to report it, click here. There was some slight damage caused by today’s earthquake, but most isolated to cracked plaster and items knocked off shelves. The moment tensor solution is consistent with a west-northwest striking oblique reverse fault, located within the complex geology of the Northridge Hills fault. To view the animated surface waves as they propagate away from the epicenter, click here. The ShakeMap for this quake is below.
Comments Off
Southern California Earthquakes in the Past Week
Anthony Guarino
Seismological Laboratory
Lucy JonesU. S. Geological Survey
California Institute of Technology
August 02, 2007
This report covers the seven day period ending 17:00 on August 02, 2007. During this period we detected and analyzed 212 earthquakes.
The table below lists the quakes during the past week that were M2.0 or larger in the central part of the coverage area. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed.
Mag. PST Date PST Time Lat. Long. & nbsp; Depth Descriptive location
-------------------------------------------------------------------------------------------
10266577 2.1 2007/07/27 07:05:30 33 56.3 N 116 43.0 W 16.3 7 km ( 4 mi) ENE of Cabazon, CA
10266629 2.1 2007/07/27 12:39:25 35 11.2 N 120 40.5 W 1.8 6 km ( 4 mi) NNW of Pismo Beach, CA
10266665 2.2 2007/07/27 17:44:10 32 26.5 N 116 44.3 W 6.4 31 km (19 mi) ESE of San Ysidro, CA
10266785 2.7 2007/07/28 08:18:44 32 30.5 N 117 52.4 W 6.0 56 km (35 mi) SE of San Clemente Is.
10266797 2.6 2007/07/28 08:45:14 33 18.0 N 116 14.7 W 13.5 13 km ( 8 mi) ENE of Borrego Springs, CA
10266801 2.3 2007/07/28 08:45:39 33 18.2 N 116 14.7 W 12.4 13 km ( 8 mi) ENE of Borrego Springs, CA
10266809 2.3 2007/07/28 09:41:53 33 57.7 N 116 20.4 W 8.7 15 km ( 9 mi) E of Desert Hot Springs, CA
10266857 2.5 2007/07/28 19:19:09 34 1.9 N 116 53.9 W 19.8 10 km ( 6 mi) SW of Mt. San Gorgonio, CA
10267109 2.1 2007/07/30 06:01:37 33 28.1 N 116 24.4 W 14.6 24 km (15 mi) N of Borrego Springs, CA
10267185 2.0 2007/07/30 12:09:58 34 4.2 N 116 28.0 W 12.0 6 km ( 4 mi) SSW of Yucca Valley, CA
10267229 2.0 2007/07/30 18:44:50 34 7.5 N 117 28.2 W 4.9 4 km ( 2 mi) WNW of Fontana, CA
10267249 2.2 2007/07/30 22:08:29 33 29.0 N 117 4.3 W 5.5 20 km (12 mi) ENE of Fallbrook, CA
10267253 2.2 2007/07/30 22:35:04 33 28.7 N 117 4.3 W 5.6 20 km (12 mi) ENE of Fallbrook, CA
10267273 3.2 2007/07/30 22:59:59 34 16.2 N 118 31.2 W 14.6 2 km ( 1 mi) W of Granada Hills, CA
Felt widely throughout the San Fernando Valley and San Gabriel Valley. If you felt this quake, and would like to
report it, click here. There were three small aftershocks following this event.
10267313 2.3 2007/07/31 07:41:54 32 40.0 N 116 2.6 W 4.7 9 km ( 5 mi) SSW of Ocotillo, CA
10267365 2.3 2007/07/31 14:35:14 32 11.0 N 115 50.5 W 8.7 63 km (39 mi) SSE of Ocotillo, CA
10267397 2.2 2007/07/31 18:23:55 34 0.2 N 116 49.9 W 14.5 9 km ( 6 mi) NNE of Banning, CA
10267401 3.1 2007/07/31 19:04:03 32 28.5 N 119 16.0 W 17.0 88 km (54 mi) SW of San Clemente Is.
10267417 2.1 2007/07/31 20:20:30 33 20.0 N 116 25.8 W 5.7 10 km ( 6 mi) NNW of Borrego Springs, CA
10267501 2.1 2007/08/01 10:55:44 35 15.6 N 118 34.0 W 6.8 18 km (11 mi) NW of Tehachapi, CA
14311068 2.3 2007/08/02 15:26:02 36 5.1 N 117 41.2 W 1.6 24 km (15 mi) E of Coso Junction, CA
Comments Off
