SCSN Earthquake Commentary

April 25, 2002

Commentary

Filed under: Weekly — kate @ 12:00 am



Southern California Earthquakes in the Past Week


Nick Scheckel ,

Seismological Laboratory
Lucy Jones,

U. S. Geological Survey
California Institute of Technology

April 25, 2002

The time period covered is 5 pm on Thursday, April 18 (PDT)
through 5 pm on Thursday, April 25 (PDT). During this period
we dectected and analysed 186 earthquakes. Click
here to see a map.

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
-------------------------------------------------------------------------------------------
 9779261  2.0  2002/04/19 09:35:32 36  4.9 N 117 49.8 W  5.0   11 km ( 7 mi) ENE  of Coso Junction, CA
 9779341  2.0  2002/04/19 15:15:27 32 58.5 N 116 41.9 W  4.2   15 km ( 9 mi) SW   of Julian, CA
12880252  2.7  2002/04/22 16:35:44 32 20.8 N 115 18.9 W  7.0   40 km (25 mi) SSE  of Calexico, CA
12880296  2.0  2002/04/22 23:06:06 33  8.4 N 115 36.9 W  7.1    4 km ( 2 mi) SSE  of Obsidian Butte, CA
12880568  2.3  2002/04/24 00:19:15 33 43.7 N 119 25.5 W  7.0   35 km (22 mi) SSE  of Santa Cruz Is.
12880688  2.3  2002/04/24 13:45:52 34 16.5 N 116 41.9 W  5.7   14 km ( 9 mi) E    of Big Bear City, CA
12880760  2.2  2002/04/25 04:21:57 34 11.7 N 119  9.2 W  2.9    2 km ( 1 mi) E    of Oxnard, CA
12880792  2.4  2002/04/25 09:08:24 35 59.6 N 117 52.1 W  3.7    9 km ( 6 mi) SE   of Coso Junction, CA
-------------------------------------------------------------------------------------------


April 18, 2002

Commentary

Filed under: Weekly — kate @ 12:00 am



Southern California Earthquakes in the Past Week


Nick Scheckel ,

Seismological Laboratory
Lucy Jones,

U. S. Geological Survey
California Institute of Technology

April 18, 2002

The time period covered is 5 pm on Thursday, April 11(PDT)
through 5 pm on Thursday, April 18 (PDT). During this period
we dectected and analysed 47 earthquakes. Click
here to see a map.

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
-------------------------------------------------------------------------------------------
 9777513  2.8  2002/04/11 22:50:27 32 19.9 N 115 19.3 W  7.0   41 km (25 mi) SSE  of Calexico, CA
 9777541  2.1  2002/04/12 03:02:57 33 39.3 N 116 46.1 W 14.4   11 km ( 7 mi) SSW  of Idyllwild, CA
 9777745  2.8  2002/04/12 17:20:30 34 29.7 N 118 50.7 W 14.9   13 km ( 8 mi) NNE  of Fillmore, CA
 9777781  2.3  2002/04/13 00:43:01 35 37.5 N 117 36.7 W  9.5    5 km ( 3 mi) E    of Ridgecrest, CA
 9777941  2.1  2002/04/14 03:52:30 32 46.9 N 115 27.9 W 12.7    8 km ( 5 mi) E    of El Centro, CA
 9778665  2.2  2002/04/15 20:34:03 32 53.7 N 115 31.1 W 15.9    8 km ( 5 mi) SSE  of Brawley, CA
 9778669  2.1  2002/04/15 20:34:55 32 55.1 N 115 31.2 W  7.8    5 km ( 3 mi) SSE  of Brawley, CA
 9778677  2.7  2002/04/15 20:49:20 32 54.0 N 115 31.3 W 18.3    7 km ( 4 mi) S    of Brawley, CA
 9778925  2.5  2002/04/16 20:10:21 34  5.8 N 119 14.9 W 17.2    7 km ( 4 mi) SW   of Port Hueneme, CA
 9778961  2.3  2002/04/17 03:16:54 33 18.0 N 116 14.3 W 11.3   14 km ( 8 mi) ENE  of Borrego Springs, CA
 9778965  2.1  2002/04/17 04:20:36 33 17.3 N 116 14.2 W 14.5   13 km ( 8 mi) ENE  of Borrego Springs, CA
 9779121  2.1  2002/04/18 12:20:53 34 24.9 N 118 58.6 W 18.0    6 km ( 4 mi) WNW  of Fillmore, CA
 9779149  2.0  2002/04/18 15:39:37 34  6.1 N 116 52.2 W  8.2    4 km ( 3 mi) W    of Mt. San Gorgonio, CA
-------------------------------------------------------------------------------------------


April 12, 2002

Commentary

Filed under: Weekly — kate @ 12:00 am



Southern California Earthquakes in the Past Week


Kate Hutton ,

Seismological Laboratory
Lucy Jones,

U. S. Geological Survey
California Institute of Technology

April 12, 2002

The time period covered is 4 pm on Thursday, April 4 (PST)
through 5 pm on Thursday, April 11 (PDT). During this period
we dectected and analysed 207 earthquakes. Click
here to see a map.

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. Local Date Local Time Lat.      Long.    Depth  Descriptive location
        -------------------------------------------------------------------------------------------
 9775765  4.4  2002/04/05 00:02:56 34 31.4 N 116 17.7 W  5.6   43 km (27 mi) N    of Joshua Tree, CA
               FELT in San Bernardino, Joshua Tree, Yucca Valley, Desert Hot Springs, and Indio
 9775813  2.0  2002/04/05 05:17:13 32 13.0 N 115 17.7 W  7.0   54 km (33 mi) SSE  of Calexico, CA
 9775849  2.2  2002/04/05 08:11:08 33 42.0 N 116 43.8 W 17.6    5 km ( 3 mi) SSW  of Idyllwild, CA
 9775877  2.7  2002/04/05 09:59:55 32 27.8 N 116 16.9 W 14.8   41 km (25 mi) SW   of Ocotillo, CA
 9775917  2.1  2002/04/05 13:45:17 34 31.1 N 116 17.8 W  2.3   42 km (26 mi) N    of Joshua Tree, CA
 9775937  2.0  2002/04/05 14:28:32 33 55.4 N 118 41.6 W 12.4   13 km ( 8 mi) S    of Malibu, CA
 9775993  2.2  2002/04/05 20:26:03 34  0.0 N 116 42.3 W 17.9   11 km ( 7 mi) NE   of Cabazon, CA
 9775989  2.2  2002/04/05 20:26:03 34  0.0 N 116 42.3 W 17.2   11 km ( 7 mi) NE   of Cabazon, CA
 9776061  2.4  2002/04/06 06:42:57 32 38.7 N 117 30.9 W  7.0   29 km (18 mi) WSW  of Mission Beach, CA
 9776073  2.1  2002/04/06 07:39:24 34 20.7 N 116 28.2 W  7.9   25 km (16 mi) N    of Yucca Valley, CA
 9776181  2.4  2002/04/06 23:21:43 34 31.2 N 116 17.8 W  4.3   43 km (27 mi) N    of Joshua Tree, CA
 9776201  2.6  2002/04/07 00:01:10 34 31.1 N 116 17.7 W  5.6   42 km (26 mi) N    of Joshua Tree, CA
 9776225  3.3  2002/04/07 06:58:43 32  6.3 N 115 27.3 W  7.0   63 km (39 mi) S    of Calexico, CA
 9776281  2.0  2002/04/07 11:33:21 34 28.0 N 116 30.7 W  6.6   38 km (24 mi) NE   of Big Bear City, CA
 9776385  2.5  2002/04/07 20:10:37 33 57.5 N 116 57.9 W 12.7    4 km ( 2 mi) NNE  of Beaumont, CA
 9776453  2.0  2002/04/08 03:53:29 34  0.4 N 118 24.3 W 10.2    1 km ( 0 mi) NNW  of Culver City, CA
               FELT in Los Angeles, Culver City, and West Los Angeles
 9776481  2.5  2002/04/08 06:28:37 34 31.2 N 116 17.8 W  5.6   43 km (26 mi) N    of Joshua Tree, CA
 9776497  2.4  2002/04/08 07:18:48 34  9.6 N 116 26.0 W  6.9    5 km ( 3 mi) NNE  of Yucca Valley, CA
 9776645  2.0  2002/04/08 16:48:17 32 32.3 N 115 45.2 W  4.7   28 km (18 mi) WSW  of Calexico, CA
 9776669  2.5  2002/04/08 17:11:31 35 43.0 N 118  4.5 W  3.2   37 km (23 mi) ENE  of town of Lake Isabella, CA
 9776701  2.5  2002/04/08 18:02:52 34 23.4 N 119  0.9 W 15.3    9 km ( 6 mi) W    of Fillmore, CA
 9776729  2.0  2002/04/08 21:48:37 32 13.6 N 117 30.4 W 29.7   57 km (35 mi) SW   of San Ysidro, CA
 9776741  2.0  2002/04/08 23:18:09 33 11.3 N 115 35.6 W  7.5    5 km ( 3 mi) ENE  of Obsidian Butte, CA
 9776745  2.4  2002/04/09 00:05:20 35 43.1 N 118  4.4 W  3.0   37 km (23 mi) ENE  of town of Lake Isabella, CA
 9776849  2.1  2002/04/09 10:01:41 32 18.6 N 115 19.1 W  7.0   43 km (27 mi) SSE  of Calexico, CA
 9776853  3.0  2002/04/09 10:15:03 32 20.7 N 115 18.8 W  7.0   40 km (25 mi) SSE  of Calexico, CA
 9776977  1.9  2002/04/09 16:36:05 35 40.0 N 116 37.2 W  7.0   42 km (26 mi) NE   of Goldstone Lake, CA
 9776981  2.4  2002/04/09 17:58:48 32 16.0 N 115 19.0 W  7.0   48 km (30 mi) SSE  of Calexico, CA
 9776985  2.3  2002/04/09 17:58:49 32 20.4 N 115 18.9 W  7.0   40 km (25 mi) SSE  of Calexico, CA
 9776993  2.2  2002/04/09 21:12:29 35 43.0 N 118  4.2 W  9.4   37 km (23 mi) ENE  of town of Lake Isabella, CA
 9777001  2.2  2002/04/09 23:06:56 32 18.6 N 115 19.4 W  7.0   43 km (27 mi) SSE  of Calexico, CA
 9777005  2.1  2002/04/09 23:28:59 32 18.6 N 115 11.8 W  7.0   49 km (30 mi) SE   of Calexico, CA
 9777017  2.0  2002/04/10 03:59:48 35  8.1 N 118 33.2 W  5.6   10 km ( 6 mi) W    of Tehachapi, CA
 9777069  2.1  2002/04/10 08:02:22 32  8.7 N 115 27.6 W  7.0   58 km (36 mi) S    of Calexico, CA
 9777141  2.0  2002/04/10 14:37:36 32 18.5 N 115 19.0 W  7.0   43 km (27 mi) SSE  of Calexico, CA
 9777181  2.5  2002/04/10 19:29:41 34 24.3 N 120 35.0 W  0.0   12 km ( 8 mi) WSW  of Pt. Conception, CA
               FELT in Lompoc
 9777393  3.3  2002/04/11 06:43:16 32 17.2 N 115 19.0 W  7.0   46 km (28 mi) SSE  of Calexico, CA
 9505114  2.1  2002/04/11 06:44:46 33  2.0 N 115 26.9 W  7.0   11 km ( 7 mi) NE   of Brawley, CA
 9777409  2.1  2002/04/11 08:03:01 34 12.6 N 118 25.8 W 12.5    2 km ( 1 mi) SE   of Panorama City, CA
 9777441  2.2  2002/04/11 13:40:46 34 35.5 N 116 16.4 W  8.9   51 km (32 mi) N    of Joshua Tree, CA
        -------------------------------------------------------------------------------------------


April 11, 2002

Commentary

Filed under: Old Commentary — kate @ 4:18 pm

A small quake occurred at 7:29 pm Wednesday night, 8 miles
west-southwest of Point Conception, or 18 miles
south-southwest of Lompoc. It was felt in Lompoc.

April 8, 2002

Commentary

Filed under: Old Commentary — kate @ 7:43 am

Friday morning’s M4.2 Hector Mines quake was reported felt in San
Bernardino, Joshua Tree, Yucca Valley, Desert Hot Springs, and Indio.

We recorded a couple of M3+ Baja quakes over the weekend: a M3.4 at
6:58 am on Sunday, 40 miles south of Calexico; and a M3.1 at 4:32 pm
Sunday, located 72 miles south-southwest of Ocotillo.

The only quake that was reported felt over the weekend, however, was
a M1.9 at 3:53 the morning. The epicenter was 2 miles northwest of
Culver City. The “felt reports” came from Los Angeles, Culver City,
and West Los Angeles.

April 5, 2002

Commentary

Filed under: Old Commentary — kate @ 7:17 am

Just after midnight, at 12:02 am, this morning, there was a M4.2
located 16 miles south-southwest of Ludlow, or 27 miles north of
Joshua Tree. Even though the focal mechanism appears to be oblique
normal, it is probably a Hector Mines aftershock. So far, no-one has
reported feeling it.

Commentary

Filed under: Weekly — kate @ 12:00 am



Southern California Earthquakes in the Past Week


Kate Hutton ,

Seismological Laboratory
Lucy Jones,

U. S. Geological Survey
California Institute of Technology

April 5, 2002

The time period covered is 4 pm on Thursday, March 28 (PST)
through 4 pm on Thursday, April 4 (PST). During this period
we dectected and analysed 202 earthquakes. Click
here to see a map.

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. Local Date Local Time Lat.      Long.    Depth  Descriptive location
        -------------------------------------------------------------------------------------------
 9774321  2.3  2002/03/29 00:15:13 32 15.0 N 115 19.6 W  7.0   49 km (31 mi) SSE  of Calexico, CA
 9774457  2.9  2002/03/29 12:57:09 32 17.9 N 115 18.7 W  7.0   45 km (28 mi) SSE  of Calexico, CA
 9774469  2.0  2002/03/29 13:16:49 32 18.5 N 115 21.0 W  7.0   42 km (26 mi) SSE  of Calexico, CA
 9774497  2.3  2002/03/29 16:13:16 32 20.2 N 115 14.7 W  7.0   44 km (27 mi) SSE  of Calexico, CA
 9774505  3.3  2002/03/29 18:01:55 32 30.3 N 115 14.4 W  7.0   30 km (19 mi) SE   of Calexico, CA
 9774569  3.8  2002/03/30 05:50:51 33 11.7 N 116 43.7 W  9.3    4 km ( 2 mi) ENE  of Mesa Grande, CA
               WIDELY FELT from San Diego to Riverside, Palm Springs, Indio, peak intensity MMI IV
 9774641  2.5  2002/03/30 13:11:09 33 11.7 N 116 43.5 W 10.1    4 km ( 3 mi) ENE  of Mesa Grande, CA
 9774713  2.5  2002/03/31 00:29:15 34  3.8 N 116 43.3 W 10.7   11 km ( 7 mi) ESE  of Mt. San Gorgonio, CA
 9774765  2.5  2002/03/31 08:53:19 32 43.0 N 115 24.2 W 15.1   10 km ( 6 mi) ENE  of Calexico, CA
 9774793  2.4  2002/03/31 10:37:52 34 19.9 N 118 45.0 W 15.6    7 km ( 4 mi) NNW  of Simi Valley, CA
 9774893  2.0  2002/04/01 05:45:10 32 38.5 N 115 51.6 W 13.4   16 km (10 mi) SE   of Ocotillo, CA
 9774993  2.1  2002/04/01 11:26:47 32 21.6 N 115 19.9 W  7.0   38 km (23 mi) SSE  of Calexico, CA
 9775021  2.8  2002/04/01 13:05:08 32 20.2 N 115 18.9 W  7.0   41 km (25 mi) SSE  of Calexico, CA
 9775293  2.3  2002/04/02 14:30:57 35  6.3 N 116 34.4 W  4.6   40 km (25 mi) SE   of Goldstone Lake, CA
 9775345  2.2  2002/04/02 19:26:46 32 14.5 N 115 20.3 W  7.0   50 km (31 mi) SSE  of Calexico, CA
 9775385  2.8  2002/04/03 02:39:46 33 52.5 N 116 50.8 W 18.0    6 km ( 4 mi) SSE  of Banning, CA
               FELT in Idyllwild
 9775469  2.1  2002/04/03 12:25:02 33 45.1 N 116 51.4 W  1.5   11 km ( 7 mi) E    of Hemet, CA
 9775613  2.2  2002/04/04 06:29:04 32 21.4 N 115 21.5 W  7.0   37 km (23 mi) SSE  of Calexico, CA
 9775653  1.9  2002/04/04 11:00:29 32 19.5 N 115 19.5 W  7.0   41 km (26 mi) SSE  of Calexico, CA
 9775689  2.0  2002/04/04 13:44:50 36  3.5 N 117 32.7 W  4.0   36 km (22 mi) NNW  of Trona, CA
        -------------------------------------------------------------------------------------------


April 3, 2002

Commentary

Filed under: Old Commentary — kate @ 6:25 am

There was a small quake (M2.8) at 2:39 am this morning, located
4 miles south-southeast of Banning. It may have been felt in
Idyllwild.

Powered by WordPress