SCSN Earthquake Commentary

May 31, 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

May 31, 2002

The time period covered is 5 pm on Thursday, May 23 (PDT)
through 5 pm on Thursday, May 30 (PDT). During this period
we dectected and analysed 195 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 locat
ion
        -------------------------------------------------------------------------------------------
13351496  2.7  2002/05/24 17:05:17 35 35.3 N 116 18.6 W  7.0   42 km (26 mi) NNW  of Baker, CA
13355464  2.4  2002/05/24 20:54:29 34 41.1 N 116 18.0 W 10.2   61 km (38 mi) N    of Joshua Tree, CA
13367432  2.9  2002/05/25 05:03:33 36 42.0 N 116 19.6 W  7.0   55 km (34 mi) ENE  of Furnace Creek, CA
13419428  2.4  2002/05/26 07:25:15 35 41.8 N 116 33.9 W 11.6   41 km (25 mi) SW   of Shoshone, CA
13439428  2.0  2002/05/27 03:44:06 34 16.0 N 116 55.8 W  8.0    3 km ( 2 mi) NW   of town of Big Bear Lake, CA
13451428  2.2  2002/05/27 05:05:18 36 27.7 N 117 53.2 W 12.0   22 km (14 mi) SE   of Lone Pine, CA
13451432  3.0  2002/05/27 06:50:20 33 54.5 N 119 34.2 W 14.6   15 km ( 9 mi) SSW  of Santa Cruz Is.
13467428  2.5  2002/05/27 13:40:38 34 19.4 N 116 26.9 W  1.2   23 km (14 mi) N    of Yucca Valley, CA
13467460  2.0  2002/05/27 14:46:52 36 27.6 N 117 53.1 W 11.1   23 km (14 mi) NNE  of Olancha, CA
13491432  2.4  2002/05/28 02:49:33 33 56.7 N 116 50.4 W 10.9    4 km ( 2 mi) ENE  of Banning, CA
13491444  2.3  2002/05/28 03:47:13 36 49.7 N 117 29.4 W 14.3   39 km (24 mi) NW   of Stovepipe Wells, CA
13503464  2.4  2002/05/29 08:48:09 34 30.3 N 120 45.3 W  5.6   13 km ( 8 mi) SW   of Pt. Arguello, CA
13507500  2.1  2002/05/29 19:26:08 34 29.1 N 120 46.1 W  5.6   15 km ( 9 mi) SW   of Pt. Arguello, CA
13527436  2.3  2002/05/30 08:50:26 34  1.7 N 116 45.2 W 16.4   10 km ( 6 mi) SE   of Mt. San Gorgonio, CA
13527468  2.1  2002/05/30 10:34:17 34  1.7 N 117  4.7 W 11.7    4 km ( 3 mi) W    of Yucaipa, CA
13531484  2.5  2002/05/30 16:06:24 32  3.2 N 116 18.8 W  7.0   82 km (51 mi) SSW  of Ocotillo, CA
        -------------------------------------------------------------------------------------------


May 27, 2002

Commentary

Filed under: Old Commentary — kate @ 5:09 pm

At 6:50 am this morning, a M3.0 quake occurred offshore 10 miles
south-southwest of Santa Cruz Island (a member of the Channel Islands)
or 31 miles south-soutwest of Ventura. If it was felt, we have not
received any reports as yet.

May 24, 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

May 24, 2002

The time period covered is 5 pm on Thursday, May 16 (PDT)
through 5 pm on Thursday, May 23 (PDT). During this period
we dectected and analysed 187 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 locat
ion
        -------------------------------------------------------------------------------------------
13159460  2.0  2002/05/17 09:11:42 32 40.9 N 117 20.4 W  7.0   13 km ( 8 mi) SW   of Mission Beach, CA
13163428  2.1  2002/05/17 10:07:05 34 37.9 N 116 41.0 W  5.1   32 km (20 mi) NE   of Lucerne Valley, CA
13175432  2.2  2002/05/17 19:19:00 33 59.9 N 116 50.6 W 19.9    8 km ( 5 mi) NNE  of Banning, CA
13219436  1.9  2002/05/18 15:35:51 32 21.5 N 115 15.4 W  7.0   41 km (25 mi) SSE  of Calexico, CA
13227452  2.2  2002/05/18 19:55:40 34 39.0 N 119 55.1 W  3.8   21 km (13 mi) ENE  of Solvang, CA
13279440  2.4  2002/05/19 20:21:35 34 37.9 N 116 38.5 W  8.4   35 km (22 mi) NE   of Lucerne Valley, CA
13279444  2.0  2002/05/19 20:59:44 35 42.3 N 118  4.6 W  3.2   36 km (22 mi) ENE  of town of Lake Isabella, CA
13283436  2.0  2002/05/20 01:58:13 32 12.2 N 115 24.9 W  7.0   52 km (32 mi) S    of Calexico, CA
13283440  2.2  2002/05/20 03:52:33 33 58.1 N 116 37.3 W 17.2    9 km ( 6 mi) SSW  of Morongo Valley, CA
13287452  2.5  2002/05/20 09:14:42 35 35.3 N 116 18.8 W  5.6   42 km (26 mi) NNW  of Baker, CA
13291460  2.7  2002/05/20 19:58:42 35 36.4 N 116 18.8 W  7.0   41 km (26 mi) S    of Shoshone, CA
13299444  2.1  2002/05/21 11:38:28 33 58.8 N 117  0.9 W 14.9    6 km ( 4 mi) SSE  of Yucaipa, CA
13303428  3.9  2002/05/21 12:43:08 33  9.5 N 115 58.6 W 12.9   13 km ( 8 mi) S    of Salton City, CA
               FELT in Imperial Valley and as far away as Palm Springs.
13303468  2.0  2002/05/21 14:26:08 33  9.6 N 115 58.6 W  6.9   13 km ( 8 mi) S    of Salton City, CA
13303476  2.0  2002/05/21 14:37:58 34  2.1 N 118 10.0 W 19.1    1 km ( 0 mi) ENE  of East Los Angeles, CA
13307504  2.6  2002/05/22 08:35:29 32 12.4 N 115 22.3 W  7.0   53 km (33 mi) SSE  of Calexico, CA
13307516  2.7  2002/05/22 09:58:23 33  9.0 N 115 59.0 W 10.8   14 km ( 9 mi) E    of Ocotillo Wells, CA
13307592  2.0  2002/05/22 15:24:54 35 41.0 N 118  6.2 W  8.2   33 km (21 mi) E    of town of Lake Isabella, CA
13315432  2.5  2002/05/23 00:46:47 33 49.7 N 118 29.5 W 14.8    9 km ( 5 mi) NW   of Palos Verdes Point, CA
               FELT in the South Bay area.
        -------------------------------------------------------------------------------------------


May 23, 2002

Commentary

Filed under: Old Commentary — kate @ 6:47 am

Two quakes were felt in Southern California overnight. The first
occurred at 5:52 pm in northern Baja, 65 miles south-southwest of
Calexico. The magnitude was M3.4. This quake was felt by someone
in El Centro.

Later, at 12:46 am, a small quake was felt in the South Bay area.
Magnitude was M2.5, and the epicenter was located offshore, 5 miles
northwest of Palos Verdes Point or 6 miles southwest of Manhattan
Beach. Felt reports came from El Segundo, Redondo Beach, Manhattan
Beach, and Rancho Palos Verdes.

May 21, 2002

Commentary

Filed under: Old Commentary — kate @ 4:57 pm

The eastern part of Imperial Valley was shaken early this afternoon
by a M3.9 quake. The quake occurred at 12:43 pm, and had an
epicenter 8 miles south of Salton City. The largest aftershock so
far was a M2.0 at 2:26 pm. The M3.9 was felt as far away as Palm
Springs and El Centro.

May 17, 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

May 17, 2002

The time period covered is 5 pm on Thursday, May 9 (PDT)
through 5 pm on Thursday, May 16 (PDT). During this period
we dectected and analysed 193 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
        -------------------------------------------------------------------------------------------
12959444  2.4  2002/05/09 19:32:59 34  9.2 N 117 26.2 W 11.0    5 km ( 3 mi) N    of Fontana, CA
12963436  2.1  2002/05/09 23:24:20 34  7.9 N 118 29.4 W 12.5    3 km ( 2 mi) SSE  of Encino, CA
                          FELT in southern San Fernando Valley
12979428  2.0  2002/05/10 06:06:54 32 21.4 N 115 18.9 W  7.0   39 km (24 mi) SSE  of Calexico, CA
12983432  2.4  2002/05/10 09:33:19 36  7.6 N 117 42.2 W  2.4   24 km (15 mi) ENE  of Coso Junction, CA
12987436  2.9  2002/05/10 14:33:12 35 22.8 N 118 28.3 W  7.0   28 km (17 mi) N    of Tehachapi, CA
                          FELT in Caliente
12987484  2.4  2002/05/10 18:02:36 32  3.9 N 116 19.0 W  7.0   80 km (50 mi) SSW  of Ocotillo, CA
12987488  2.2  2002/05/10 19:07:49 33 59.1 N 119 28.6 W  7.0    7 km ( 4 mi) SE   of Santa Cruz Is.
12987512  2.0  2002/05/10 21:07:26 32 23.8 N 115 25.4 W  7.0   31 km (19 mi) SSE  of Calexico, CA
12987516  2.2  2002/05/10 21:34:28 32 18.4 N 115 18.3 W  7.0   44 km (27 mi) SSE  of Calexico, CA
12987528  3.0  2002/05/10 22:16:34 32  2.4 N 116 18.9 W  7.0   83 km (52 mi) SSW  of Ocotillo, CA
12995428  2.1  2002/05/11 02:27:39 32 17.5 N 115 19.5 W  7.0   45 km (28 mi) SSE  of Calexico, CA
12995460  2.1  2002/05/11 08:08:41 34 17.8 N 118 38.1 W 13.9    5 km ( 3 mi) NNW  of Chatsworth, CA
13007460  2.5  2002/05/11 16:08:21 35 42.3 N 118  5.0 W  3.5   35 km (22 mi) ENE  of town of Lake Isabella, CA
13011468  2.3  2002/05/12 00:32:27 32  5.8 N 116 26.2 W  7.0   76 km (47 mi) SE   of San Ysidro, CA
13015440  2.0  2002/05/12 04:01:10 32 52.8 N 117 57.2 W  7.0   37 km (23 mi) E    of San Clemente Is.
13023460  1.9  2002/05/12 10:50:19 32 47.8 N 115 27.0 W 13.5   10 km ( 6 mi) E    of El Centro, CA
13031456  2.1  2002/05/12 19:24:42 32 44.3 N 115 30.8 W 16.1    7 km ( 4 mi) SSE  of El Centro, CA
13075472  1.9  2002/05/14 03:11:06 34  7.6 N 117 29.7 W  5.6    6 km ( 4 mi) WNW  of Fontana, CA
13083432  2.4  2002/05/14 07:05:21 32 19.1 N 115 18.7 W  7.0   43 km (26 mi) SSE  of Calexico, CA
13111448  2.0  2002/05/15 08:12:07 35 42.6 N 118  4.9 W  2.6   36 km (22 mi) ENE  of town of Lake Isabella, CA
13115460  2.5  2002/05/15 16:32:11 35  7.5 N 118 58.2 W 26.1   14 km ( 8 mi) N    of Wheeler Ridge, CA
13115492  2.4  2002/05/15 18:26:56 34 12.7 N 116 50.3 W  8.8    6 km ( 4 mi) SSE  of Big Bear City, CA
        -------------------------------------------------------------------------------------------


May 14, 2002

Commentary

Filed under: Old Commentary — kate @ 7:34 am

Note that Central California experienced a widely-felt earthquake
late last night. The Northern California Seismic Network (NCSN)
reported the quake at magnitued M5.2, located 3 miles southwest of
Gilroy or 14 miles northwest of Hollister, in the Santa Cruz Mtns.
For further information, click on the “Map of Recent Earthquake
Activity” link above.

May 10, 2002

Commentary

Filed under: Old Commentary — kate @ 3:30 pm

A M2.8 quake occurred this afternoon at 2:33 pm, located 17 miles
south of the town of Lake Isabella. It was felt in Caliente. This
quake is not part of the Walker Pass series, but a new location
further to the southwest.

Commentary

Filed under: Old Commentary — kate @ 7:10 am

Quite a few people felt a M2.1 in the southern San Fernando Valley
last night. The
time was 11:24 pm, and the epicenter was located 2 miles south-southeast
of Encino. “Felt reports” came from Encino, North Hollywood, Studio
City, Sherman Oaks, Van Nuys, Valley Village, Valley Glen.

Interestingly, there was a M1.7 quake in the Culver City area only
a few minutes later, at 11:50 pm. That epicenter was 2 miles
west-northwest of Culver City, or 3 miles south of Century City.
A M1.7 is generally too small for people to feel. This quake
was not an aftershock of the earlier M2.1, because it occurred at a
completely different location.

Commentary

Filed under: Weekly — kate @ 12:00 am

1


Southern California Earthquakes in the Past Week


Kate Hutton ,

Seismological Laboratory
Lucy Jones,

U. S. Geological Survey
California Institute of Technology

May 10, 2002

The time period covered is 5 pm on Thursday, May 2 (PDT)
through 5 pm on Thursday, May 9 (PDT). During this period
we dectected and analysed 261 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
        -------------------------------------------------------------------------------------------
12895488  2.7  2002/05/02 18:17:54 33  0.3 N 118 20.1 W 11.5   21 km (13 mi) N    of San Clemente Is.
12895568  2.3  2002/05/03 01:15:41 35 42.2 N 118  5.2 W  3.1   35 km (22 mi) ENE  of town of Lake Isabella, CA
12895576  2.0  2002/05/03 01:41:22 35 41.8 N 118  4.9 W  2.1   35 km (22 mi) E    of town of Lake Isabella, CA
12895588  3.0  2002/05/03 02:59:59 35 42.0 N 118  5.1 W  2.9   35 km (22 mi) ENE  of town of Lake Isabella, CA
               FELT in Inyokern
12895612  2.1  2002/05/03 04:18:58 32 43.0 N 116  3.8 W  6.8    7 km ( 4 mi) WSW  of Ocotillo, CA
12895604  2.1  2002/05/03 04:18:58 32 42.7 N 116  3.9 W  6.9    7 km ( 4 mi) WSW  of Ocotillo, CA
12895620  2.1  2002/05/03 04:38:24 34 15.0 N 117 28.5 W 14.2    7 km ( 5 mi) WNW  of Devore, CA
 9505582  1.9  2002/05/03 10:38:55 32  9.5 N 115  1.5 W  7.0   71 km (44 mi) SSW  of Yuma, AZ
12895740  2.1  2002/05/03 13:51:20 33  8.8 N 116 20.3 W  9.9   12 km ( 8 mi) SSE  of Borrego Springs, CA
12911448  2.5  2002/05/04 22:06:12 33 52.0 N 119 49.0 W  5.6   25 km (16 mi) SSE  of Santa Cruz Is.
12911456  2.6  2002/05/05 00:26:44 34 48.2 N 116 15.9 W  5.8   54 km (34 mi) SSW  of Baker, CA
12911480  2.0  2002/05/05 04:02:39 33 28.8 N 116 30.5 W 10.3   17 km (11 mi) ESE  of Anza, CA
12915444  2.2  2002/05/05 07:42:08 32 22.4 N 115 13.4 W  7.0   42 km (26 mi) SE   of Calexico, CA
12915456  2.1  2002/05/05 09:56:05 34 48.2 N 116 15.9 W  5.5   54 km (34 mi) SSW  of Baker, CA
12923444  2.2  2002/05/05 15:20:49 34 20.1 N 116 54.8 W  3.4    9 km ( 6 mi) NW   of Big Bear City, CA
12927476  2.2  2002/05/05 19:37:27 34 18.2 N 116 51.1 W 13.7    4 km ( 3 mi) N    of Big Bear City, CA
12927512  2.5  2002/05/05 23:45:50 32  9.4 N 114 60.0 W  7.0   70 km (43 mi) SSW  of Yuma, AZ
12927520  2.0  2002/05/06 00:36:30 33 10.1 N 115 39.0 W  4.7    1 km ( 1 mi) W    of Obsidian Butte, CA
12927532  2.6  2002/05/06 00:47:45 33  9.7 N 115 39.0 W  0.2    2 km ( 1 mi) SW   of Obsidian Butte, CA
12927580  2.6  2002/05/06 04:54:53 35 43.3 N 118  4.2 W  3.0   37 km (23 mi) ENE  of town of Lake Isabella, CA
12931508  2.0  2002/05/06 15:20:53 35 45.8 N 118 20.8 W  2.4   18 km (11 mi) NE   of town of Lake Isabella, CA
12935440  2.8  2002/05/06 19:02:23 36  5.9 N 117 54.1 W  3.2    7 km ( 5 mi) NE   of Coso Junction, CA
12935448  2.2  2002/05/06 19:24:43 36  5.8 N 117 54.0 W  3.7    7 km ( 4 mi) NE   of Coso Junction, CA
12935468  2.2  2002/05/06 22:28:26 34 20.8 N 118 45.9 W 12.0    9 km ( 6 mi) NW   of Simi Valley, CA
12935492  2.3  2002/05/07 02:34:34 32 16.2 N 115 18.9 W  7.0   47 km (29 mi) SSE  of Calexico, CA
12943648  3.4  2002/05/07 15:31:48 35 42.9 N 118  4.1 W  3.2   37 km (23 mi) ENE  of town of Lake Isabella, CA
12943660  2.5  2002/05/07 15:55:44 32 43.5 N 115 25.2 W 11.3   10 km ( 6 mi) NE   of Calexico, CA
12947432  2.6  2002/05/07 21:51:07 32 44.6 N 115 25.4 W 14.3   11 km ( 7 mi) NE   of Calexico, CA
12947460  2.0  2002/05/08 05:27:24 33 57.6 N 116 46.5 W 22.6    4 km ( 3 mi) NNE  of Cabazon, CA
12951428  2.2  2002/05/08 17:38:42 34 48.3 N 116 15.7 W  5.9   54 km (34 mi) SSW  of Baker, CA
12951448  2.8  2002/05/08 19:55:24 32 17.4 N 115 19.5 W  7.0   45 km (28 mi) SSE  of Calexico, CA
12951456  2.2  2002/05/08 20:39:26 32 20.0 N 115 20.4 W  7.0   40 km (25 mi) SSE  of Calexico, CA
12951500  2.2  2002/05/09 04:01:38 33  3.2 N 117 48.4 W  7.0   43 km (27 mi) WSW  of Oceanside, CA
12955452  2.0  2002/05/09 10:12:42 34  8.7 N 117 26.6 W 10.7    4 km ( 3 mi) N    of Fontana, CA
        -------------------------------------------------------------------------------------------


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