SCSN Earthquake Commentary

September 27, 2007

Weekly Seismicity Report – September 27, 2007

Filed under: Weekly — Anthony Guarino @ 4:30 pm



Southern California Earthquakes in the Past Week

Anthony Guarino
 Seismological Laboratory

Sue HoughU. S. Geological Survey

California Institute of Technology

September 27, 2007

This report covers the seven day period ending 17:00 on September 27, 2007. During this period we detected and analyzed 243 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
-------------------------------------------------------------------------------------------


14324688  2.2  2007/09/21 00:20:08 34  1.8 N 117 10.9 W  7.0    3 km ( 2 mi)  S of Redlands, CA
14324888  2.3  2007/09/21 23:16:13 32 43.0 N 115 23.7 W 14.7   11 km ( 7 mi)  ENE  of Calexico, CA
14324896  3.0  2007/09/22 00:58:38 34  1.2 N 117 13.7 W 16.1    4 km ( 2 mi)  SE of Loma Linda, CA
Felt in Loma Linda and surrounding area
14324940  2.1  2007/09/22 05:41:32 33 15.6 N 116  1.7 W  3.7    6 km ( 4 mi)  WSW  of Salton City, CA
14324976  2.2  2007/09/22 09:46:30 36  8.9 N 118  4.4 W  0.0   16 km (10 mi)  SSW  of Olancha, CA
14325060  2.2  2007/09/22 16:08:24 33 13.9 N 116  2.4 W  9.0    9 km ( 5 mi)  SW of Salton City, CA
14325104  2.0  2007/09/22 19:51:24 33 38.6 N 116 43.5 W 14.6   11 km ( 7 mi)  NNW  of Anza, CA
14325120  3.6  2007/09/23 01:13:41 32 41.8 N 116  3.1 W  9.3    7 km ( 4 mi)  SW of Ocotillo, CA
Felt in Ocotillo and surrounding area
14325128  2.0  2007/09/23 01:55:44 32 42.0 N 116  2.8 W  8.5    6 km ( 4 mi)  SW of Ocotillo, CA
14325248  2.6  2007/09/24 03:05:58 33 59.0 N 116 40.0 W 10.7   10 km ( 6 mi)  SW of Morongo Valley, CA
14325252  2.7  2007/09/24 03:11:27 35  7.2 N 118 36.6 W  2.6   15 km ( 9 mi)  W of Tehachapi, CA
14325288  2.3  2007/09/24 07:01:25 34  0.9 N 117 14.1 W 17.1    4 km ( 2 mi)  SSE  of Loma Linda, CA
14325292  2.1  2007/09/24 08:59:04 35  7.1 N 118 36.5 W  2.5   15 km ( 9 mi)  W of Tehachapi, CA
14325304  2.1  2007/09/24 10:54:23 33 12.1 N 116  2.5 W  9.9   10 km ( 7 mi)  NE of Ocotillo Wells, CA
14325388  2.2  2007/09/24 18:54:05 33 52.9 N 116 33.8 W 10.7    8 km ( 5 mi)  NNW  of Palm Springs, CA
14325560  3.9  2007/09/25 15:38:23 33 44.2 N 117 28.2 W  9.8   15 km ( 9 mi)  WNW  of Lake Elsinore, CA
Felt widely throughout Riverside, Orange, and Los Angeles counties. Felt as far away as San Bernardino and San Diego counties.
14325652  2.1  2007/09/26 02:40:34 35 34.0 N 118 47.6 W  4.9   29 km (18 mi)  NE of Bakersfield, CA
14325656  2.0  2007/09/26 02:48:08 35 31.4 N 118 46.6 W 16.7   26 km (16 mi)  NE of Bakersfield, CA
14325676  2.3  2007/09/26 06:52:07 33 43.8 N 117 28.7 W  9.2   15 km (10 mi)  WNW  of Lake Elsinore, CA
14325696  2.1  2007/09/26 09:19:07 34  8.7 N 117 35.7 W 11.6    4 km ( 3 mi)  N of Rancho Cucamonga, CA
14325700  2.2  2007/09/26 09:50:16 32 53.5 N 117 40.6 W 10.9   40 km (25 mi)  W of La Jolla, CA
14325728  2.2  2007/09/26 11:23:34 33 13.6 N 116  3.2 W 13.3   10 km ( 6 mi)  SW of Salton City, CA
14325756  2.3  2007/09/26 17:17:58 32 28.2 N 116 42.9 W  7.0   32 km (20 mi)  ESE  of Chula Vista, CA
14325780  2.2  2007/09/27 00:30:22 34 30.1 N 116 15.0 W  3.8   41 km (25 mi)  N of Joshua Tree, CA
14325868  2.7  2007/09/27 11:09:08 32  4.5 N 116 14.0 W  5.9   77 km (48 mi)  SSW  of Ocotillo, CA
10282797  2.1  2007/09/27 14:52:35 32 23.1 N 115 46.1 W  5.6   41 km (25 mi)  SW of Calexico, CA
10282805  2.1  2007/09/27 15:44:22 32  5.6 N 116 14.1 W  7.0   75 km (47 mi)  SSW  of Ocotillo, CA

September 26, 2007

3.9 aftershock near Lake Elsinore

Filed under: Felt Earthquakes — kate @ 9:19 am

The Lake Elsinore area experience a ML3.9 aftershock (to the Sept. 2 ML4.7) at 3:38 pm on Tuesday. It was felt from Escondido to Pasadena, including by many people in the Seismological Laboratory. Like the other quakes in this sequence, this one was located 8 miles west-northwest of Lake Elsinore.

September 20, 2007

Weekly Seismicity Report – September 20, 2007

Filed under: Weekly — Anthony Guarino @ 4:05 pm



Southern California Earthquakes in the Past Week

Anthony Guarino
 Seismological Laboratory

Sue Hough U. S. Geological Survey

California Institute of Technology

September 20, 2007

This report covers the seven day period ending 17:00 on September 20, 2007. During this period we detected and analyzed 171 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
-------------------------------------------------------------------------------------------


10280397  3.0  2007/09/13 21:24:47 32 46.1 N 117 20.6 W 11.7    8 km ( 5 mi)  W of Mission Beach, CA
Felt in San Diego and surrounding area
10280425  2.1  2007/09/14 02:47:34 33 59.5 N 116 47.9 W 17.7    8 km ( 5 mi)  N of Cabazon, CA
10280681  2.3  2007/09/15 15:02:33 34 48.6 N 116 41.3 W  0.0   32 km (20 mi)  ESE  of Barstow, CA
10280685  2.1  2007/09/15 15:18:22 33 20.9 N 116 46.6 W 18.2    8 km ( 5 mi)  E of Palomar Observatory, CA
10280841  2.5  2007/09/16 16:19:39 33 44.1 N 117 28.5 W  9.9   16 km (10 mi)  WNW  of Lake Elsinore, CA
10280921  2.7  2007/09/17 03:56:43 33 44.1 N 117 28.5 W 11.0   15 km (10 mi)  WNW  of Lake Elsinore, CA
10280945  2.1  2007/09/17 06:41:55 32 58.2 N 115 47.9 W  4.5   18 km (11 mi)  WSW  of Westmorland, CA
10280949  2.0  2007/09/17 06:52:15 33 59.4 N 117  0.9 W  7.0    5 km ( 3 mi)  SSE  of Yucaipa, CA
10281005  2.2  2007/09/17 14:47:13 34  9.7 N 117 26.9 W 11.6    6 km ( 4 mi)  NNW  of Fontana, CA
10281045  2.1  2007/09/17 22:31:38 33 23.8 N 116 22.0 W  4.3   16 km (10 mi)  N of Borrego Springs, CA
10281117  2.5  2007/09/18 13:02:15 33 18.7 N 116 50.1 W  9.1    5 km ( 3 mi)  SSE  of Palomar Observatory, CA
10281313  2.4  2007/09/19 21:22:25 34 19.6 N 116 50.6 W  6.0    7 km ( 4 mi)  N of Big Bear City, CA
10281321  2.2  2007/09/19 22:03:07 33 25.1 N 116 23.1 W 14.3   18 km (11 mi)  N of Borrego Springs, CA
10281353  2.3  2007/09/20 02:33:08 34 55.5 N 116 42.5 W 12.3   29 km (18 mi)  E of Barstow, CA
10281369  3.2  2007/09/20 08:01:50 34 48.2 N 116 17.1 W  7.5   55 km (34 mi)  SSW  of Baker, CA

September 13, 2007

Weekly Seismicity Report – September 13, 2007

Filed under: Weekly — Anthony Guarino @ 5:16 pm



Southern California Earthquakes in the Past Week

Anthony Guarino
Seismological Laboratory

Sue HoughU. S. Geological Survey

California Institute of Technology

September 13, 2007

This report covers the seven day period ending 17:00 on September 13, 2007. During this period we detected and analyzed 211 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
-------------------------------------------------------------------------------------------


10277181  2.1  2007/09/06 18:00:45 36 17.6 N 118 19.6 W  7.0   29 km (18 mi)  W of Olancha, CA
10277229  3.2  2007/09/07 00:07:26 32 11.1 N 115 49.5 W  7.1   62 km (38 mi)  SSW  of Calexico, CA
10277233  2.1  2007/09/07 00:13:53 33 44.6 N 117 28.5 W  7.2   16 km (10 mi)  WNW  of Lake Elsinore, CA
10277237  2.2  2007/09/07 00:31:07 33 35.1 N 118 13.6 W  2.1   15 km ( 9 mi)  SSE  of Pt. Fermin San Pedro, CA
10277365  2.2  2007/09/07 07:47:15 36  5.0 N 117 53.4 W  4.3    7 km ( 4 mi)  NE of Coso Junction, CA
10277669  3.2  2007/09/07 12:10:16 32 46.4 N 117 19.7 W 11.2    7 km ( 4 mi)  W of Mission Beach, CA
Felt in San Diego
10277737  2.7  2007/09/07 14:47:32 32 46.4 N 117 19.7 W 10.8    7 km ( 4 mi)  W of Mission Beach, CA
10277757  2.3  2007/09/07 21:32:04 36  8.8 N 117 53.9 W  2.5   12 km ( 8 mi)  NNE  of Coso Junction, CA
10277849  2.2  2007/09/08 18:48:12 32 45.6 N 117 20.7 W 10.8    9 km ( 5 mi)  WSW  of Mission Beach, CA
10277857  2.2  2007/09/08 19:00:49 32 47.3 N 117 24.4 W  6.0   14 km ( 9 mi)  W of Mission Beach, CA
10277865  3.9  2007/09/08 19:34:42 33  0.2 N 117 45.8 W  6.0   42 km (26 mi)  WSW  of Oceanside, CA
10277945  3.7  2007/09/09 06:11:49 32 46.2 N 117 19.5 W 11.1    7 km ( 4 mi)  W of Mission Beach, CA
Felt throughout San Diego County
10277949  2.1  2007/09/09 06:21:20 32 46.2 N 117 19.4 W  9.4    7 km ( 4 mi)  W of Mission Beach, CA
10277965  2.8  2007/09/09 06:40:12 32 45.6 N 117 20.6 W 11.6    9 km ( 5 mi)  WSW  of Mission Beach, CA
Felt in San Diego
10278025  2.1  2007/09/09 10:08:32 32 47.1 N 117 19.4 W  6.0    7 km ( 4 mi)  W of Mission Beach, CA
10278045  2.0  2007/09/09 12:35:20 32 46.1 N 117 19.8 W 10.5    7 km ( 4 mi)  W of Mission Beach, CA
10278101  2.6  2007/09/09 20:22:34 34 10.2 N 117 25.6 W  8.1    6 km ( 4 mi)  SSW  of Devore, CA
Felt in Devore
10278153  2.1  2007/09/10 01:42:55 33 27.2 N 116 53.1 W 12.0   11 km ( 7 mi)  N of Palomar Observatory, CA
10278177  2.4  2007/09/10 04:51:40 36  8.0 N 117 41.7 W  0.3   25 km (15 mi)  ENE  of Coso Junction, CA
10278573  2.3  2007/09/10 16:23:32 32 46.2 N 117 19.6 W 10.3    7 km ( 4 mi)  W of Mission Beach, CA
10278605  2.9  2007/09/10 21:57:50 33  0.4 N 117 44.5 W 27.8   40 km (25 mi)  WSW  of Oceanside, CA
10278613  2.2  2007/09/10 22:13:15 32 45.9 N 117 20.9 W 10.6    9 km ( 6 mi)  W of Mission Beach, CA
10278629  2.3  2007/09/10 23:36:30 32 46.3 N 117 19.3 W  9.7    6 km ( 4 mi)  W of Mission Beach, CA
10279285  2.7  2007/09/12 00:37:37 32 46.0 N 117 20.7 W 10.4    9 km ( 5 mi)  W of Mission Beach, CA
10279289  2.5  2007/09/12 01:11:35 32 46.1 N 117 20.3 W 10.0    8 km ( 5 mi)  W of Mission Beach, CA
10279321  3.7  2007/09/12 04:30:25 33 44.2 N 117 28.8 W  9.0   16 km (10 mi)  WNW  of Lake Elsinore, CA
Felt in Lake Elsinore, southern Orange County, and portions of the Inland Empire
If you felt this quake, and would like to report it, click here:

http://pasadena.wr.usgs.gov/shake/STORE/X10279321/ciim_display.html 

10279441  3.2  2007/09/12 07:21:40 33 44.0 N 117 29.0 W 11.5   16 km (10 mi)  WNW  of Lake Elsinore, CA
Felt in Lake Elsinore, southern Orange County, and portions of the Inland Empire. If you felt this quake,
and would like to report it, click here:

http://pasadena.wr.usgs.gov/shake/STORE/X10279441/ciim_display.html 

10279953  2.1  2007/09/13 06:11:07 33  6.8 N 116 36.5 W 16.0    4 km ( 2 mi)  N of Julian, CA
10280317  2.0  2007/09/13 12:13:35 35 21.6 N 118 29.4 W  4.8   26 km (16 mi)  N of Tehachapi, CA

%

September 7, 2007

M3.1 Mission Beach Aftershock

Filed under: Felt Earthquakes, Significant Events — Anthony Guarino @ 11:29 am

There was a M3.1 aftershock to the Mission Beach Earthquake this afternoon, at 12:10PM, located very near the epicenter to the M4.0 mainshock, which occurred on Tues. Sept. 4th at 7:47AM, located 5 miles W of Mission Beach, CA. This aftershock has been one of several that have occurred during this aftershock sequence, and has been the largest to date. This aftershock was felt in the Mission Bay area, and throughout the Downtown San Diego area. If you felt this quake, and would like to report it, click here.

September 6, 2007

Weekly Seismicity Report – Sept. 6, 2007

Filed under: Weekly — Anthony Guarino @ 4:28 pm



Southern California Earthquakes in the Past Week

Anthony Guarino
Seismological Laboratory

Sue HoughU. S. Geological Survey

California Institute of Technology

September 06, 2007

This report covers the seven day period ending 17:00 on September 06, 2007. During this period we detected and analyzed 303 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
-------------------------------------------------------------------------------------------


  10275165  2.3  2007/08/31 09:27:25 36 17.5 N 118 19.6 W  5.6   29 km (18 mi)  W of Olancha, CA
10275373  3.0  2007/08/31 14:04:24 32 47.6 N 115 42.2 W 15.4   14 km ( 9 mi)  W of El Centro, CA
Felt in El Centro and surrounding area.
10275389  2.2  2007/08/31 16:10:49 35  7.5 N 117 33.4 W  2.7   16 km (10 mi)  NNE  of Boron, CA
10275401  2.2  2007/08/31 16:34:41 32  9.5 N 116 10.8 W  7.0   66 km (41 mi)  SSW  of Ocotillo, CA
10275409  2.1  2007/08/31 17:06:42 32 27.6 N 115 19.3 W  6.0   28 km (18 mi)  SE of Calexico, CA
10275437  2.4  2007/08/31 17:47:50 36  8.4 N 117 55.0 W  2.8   11 km ( 7 mi)  NNE  of Coso Junction, CA
10275541  2.1  2007/09/01 10:48:51 32 20.2 N 115 12.2 W 16.9   46 km (29 mi)  SE of Calexico, CA
10275577  2.6  2007/09/01 15:34:29 32 59.4 N 116 18.8 W  5.0   24 km (15 mi)  SW of Ocotillo Wells, CA
10275669  2.1  2007/09/01 20:27:21 33 32.9 N 115 52.6 W  6.0    6 km ( 4 mi)  ENE  of North Shore, CA
10275709  2.1  2007/09/02 05:35:31 33 50.6 N 119 11.1 W  5.8   32 km (20 mi)  SW of Leo Carrillo State Beach, CA
10275713  2.9  2007/09/02 05:53:38 32 11.5 N 115 15.5 W  7.0   58 km (36 mi)  SSE  of Calexico, CA
10275733  4.7  2007/09/02 10:29:14 33 43.9 N 117 28.6 W 12.6   15 km (10 mi)  WNW  of Lake Elsinore, CA
Felt widely throughout Southern California, from Palmdale to the north, San Diego to the south, Palm Springs to the east, and the coastal cities to the west.
If you felt this event, and would like to report it, click here: http://pasadena.wr.usgs.gov/shake/STORE/X10275733/ciim_display.html
10275737  2.5  2007/09/02 10:31:15 33 44.8 N 117 28.3 W  6.0   16 km (10 mi)  NW of Lake Elsinore, CA
10275829  2.2  2007/09/02 14:20:30 32 45.9 N 117 20.7 W 11.2    9 km ( 5 mi)  W of Mission Beach, CA
10275869  2.2  2007/09/02 16:46:37 33 25.0 N 118  3.3 W 14.4   25 km (15 mi)  SSW  of Newport Beach, CA
10275889  2.8  2007/09/02 18:50:42 36  7.9 N 117 41.6 W  0.8   25 km (15 mi)  ENE  of Coso Junction, CA
10275961  2.1  2007/09/03 03:26:45 33 26.8 N 116 38.4 W  8.6   12 km ( 8 mi)  SSE  of Anza, CA
10275993  3.1  2007/09/03 08:30:24 33 54.9 N 117 47.4 W  9.7    4 km ( 2 mi)  NE of Yorba Linda, CA
Felt throughout Orange County and parts of Los Angeles and Riverside county
10276137  2.0  2007/09/03 23:41:15 33 44.2 N 117 28.5 W  8.5   16 km (10 mi)  WNW  of Lake Elsinore, CA
10276153  2.4  2007/09/04 02:47:00 33 21.6 N 116 16.9 W  5.6   14 km ( 9 mi)  NE of Borrego Springs, CA
10276165  2.5  2007/09/04 05:48:30 33 39.1 N 116 45.3 W 14.2   11 km ( 7 mi)  SSW  of Idyllwild, CA
10276197  4.0  2007/09/04 07:47:59 32 46.0 N 117 20.4 W 10.9    8 km ( 5 mi)  W of Mission Beach, CA
Felt widely throughout San Diego county, and felt as far north as Los Angeles. If you felt this event, and
would like to report it, click here: http://pasadena.wr.usgs.gov/shake/STORE/X10276197/ciim_display.html
10276401  2.5  2007/09/04 13:41:14 32 45.9 N 117 20.8 W 10.6    9 km ( 6 mi)  W of Mission Beach, CA
10276409  2.4  2007/09/04 14:01:23 32 45.5 N 117 21.1 W 11.3   10 km ( 6 mi)  WSW  of Mission Beach, CA
10276413  2.0  2007/09/04 14:52:05 36  8.2 N 117 54.6 W  3.9   11 km ( 7 mi)  NNE  of Coso Junction, CA
10276465  2.6  2007/09/04 21:20:31 32 45.7 N 117 20.9 W 11.1    9 km ( 6 mi)  WSW  of Mission Beach, CA
Felt in San Diego
10276469  2.4  2007/09/04 21:24:42 32 46.1 N 117 20.3 W  9.3    8 km ( 5 mi)  W of Mission Beach, CA
10276477  2.1  2007/09/04 22:11:12 32 46.0 N 117 21.1 W 11.4    9 km ( 6 mi)  W of Mission Beach, CA
10276565  2.1  2007/09/05 06:57:17 33  9.0 N 116  0.3 W  6.1   12 km ( 7 mi)  E of Ocotillo Wells, CA
10276637  3.4  2007/09/05 08:16:47 33 44.1 N 117 28.6 W  4.5   16 km (10 mi)  WNW  of Lake Elsinore, CA
Felt in the Inland Empire and Orange County
10276705  2.4  2007/09/05 13:47:50 33  5.1 N 117 55.8 W  7.1   46 km (29 mi)  SSW  of Dana Point, CA
10276709  2.6  2007/09/05 14:31:18 33 44.4 N 117 28.8 W  7.9   16 km (10 mi)  WNW  of Lake Elsinore, CA
Felt in Lake Elsinore
10276773  2.9  2007/09/06 00:14:23 32 59.5 N 116 18.7 W  5.2   24 km (15 mi)  SW of Ocotillo Wells, CA
Felt in Ocotillo Wells
10276837  2.4  2007/09/06 06:25:57 32 55.7 N 115 32.9 W 15.4    4 km ( 2 mi)  SSW  of Brawley, CA
10276913  2.3  2007/09/06 07:16:14 32 47.3 N 117 20.5 W  7.0    8 km ( 5 mi)  W of Mission Beach, CA
10276933  2.8  2007/09/06 09:05:30 33 44.4 N 117 28.3 W  8.5   15 km (10 mi)  WNW  of Lake Elsinore, CA
Felt in Lake Elsinore and southeast Orange County
10276949  2.6  2007/09/06 09:36:52 32 46.3 N 117 20.7 W 10.7    9 km ( 5 mi)  W of Mission Beach, CA
Felt in San Diego
10276969  2.5  2007/09/06 09:52:34 33 43.9 N 117 29.1 W  9.0   16 km (10 mi)  WNW  of Lake Elsinore, CA
10276973  2.0  2007/09/06 10:17:27 32 59.7 N 116 18.3 W  5.0   23 km (14 mi)  SW of Ocotillo Wells, CA
10277041  2.1  2007/09/06 10:52:50 36 17.4 N 118 19.8 W  4.8   29 km (18 mi)  W of Olancha, CA
10277045  2.6  2007/09/06 10:52:51 36 17.4 N 118 19.7 W  4.9   29 km (18 mi)  W of Olancha, CA
10277073  2.6  2007/09/06 11:22:50 33 44.1 N 117 28.9 W  9.4   16 km (10 mi)  WNW  of Lake Elsinore, CA
10277093  2.5  2007/09/06 11:45:02 32 33.9 N 118 36.2 W  6.0   37 km (23 mi)  SW of San Clemente Is.
10277157  2.6  2007/09/06 15:15:24 33 23.9 N 116 21.8 W  2.6   16 km (10 mi)  N of Borrego Springs, CA

September 5, 2007

3.4 aftershock

Filed under: Felt Earthquakes — kate @ 7:25 am

There has been a ML3.4 aftershock to Sunday’s 4.7 quake. Like the mainshock, this one was located 8 miles west-northwest of Lake Elsinore.

September 4, 2007

4.0 off San Diego

Filed under: Felt Earthquakes — kate @ 7:22 am

At 7:48 am (actually 7:47:59 am) today, San Diego experienced a light shake from a quake located offshore, 7 miles southwest of La Jolla or 5 miles west of Mission Beach. The magnitude was ML4.0. The quake occurred in the same location as the ML3.4 last Thursday, August 30.

September 3, 2007

two felt earthquakes

Filed under: Felt Earthquakes — kate @ 7:55 am

A ML4.7 quake at 10:29 am on Sunday was widely felt throughout southern California. It originated 8 miles west-northwest of Lake Elsinore. Some people as far away as Ramona & the San Fernando Valley reported feeling it. Although it was near the Elsinore fault, the focal mechanism suggests that it was not actually on that fault.

Another smaller quake occurred Monday morning at 8:30 am. This quake was a ML3.2, located 3 miles north-northeast of Yorba Linda. It was felt in the area of northern Orange County & Whittier.

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