Kate Hutton ,
Seismological Laboratory
Lucy Jones,
U. S. Geological Survey
California Institute of Technology
December 24, 1999
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.
Date Time Lat. Long. Mag. Descriptive location
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12/16 5:10 pm 34 39.5 116 18.8 2.3 36 mi. N of Joshua Tree, CA
12/16 5:13 pm 34 40.0 116 17.3 2.3 36 mi. N of Joshua Tree, CA
12/16 5:56 pm 34 28.4 116 14.0 2.2 23 mi. N of Joshua Tree, CA
12/16 6:43 pm 34 6.3 117 0.6 2.5 5 mi. NNE of Yucaipa, CA
12/16 7:35 pm 34 39.9 116 17.6 2.1 36 mi. N of Joshua Tree, CA
12/16 8:15 pm 34 48.5 116 17.1 2.1 33 mi. SSW of Baker, CA
12/16 8:31 pm 34 32.6 116 18.8 2.5 28 mi. N of Joshua Tree, CA
12/16 8:39 pm 34 35.1 116 15.4 2.1 31 mi. N of Joshua Tree, CA
12/16 11:01 pm 34 31.7 116 15.3 2.3 27 mi. N of Joshua Tree, CA
12/16 11:46 pm 34 48.3 116 17.0 2.4 34 mi. SSW of Baker, CA
12/17 3:10 am 34 18.1 116 50.8 2.5 2 mi. N of Big Bear City, CA
12/17 3:42 am 35 0.3 119 9.0 2.8 11 mi. W of Wheeler Ridge, CA
12/17 5:09 am 34 50.7 116 20.8 2.0 32 mi. SSW of Baker, CA
12/17 5:47 am 32 0.2 115 45.0 2.5 48 mi. SSW of Calexico, CA
12/17 7:10 am 34 42.1 116 17.7 2.2 39 mi. N of Joshua Tree, CA
12/17 8:12 am 34 51.0 116 24.5 2.0 34 mi. SSW of Baker, CA
12/17 10:05 am 34 27.6 116 14.3 2.0 22 mi. N of Joshua Tree, CA
12/17 10:34 am 34 36.5 116 17.9 2.4 32 mi. N of Joshua Tree, CA
12/17 11:16 am 34 34.7 116 15.3 2.3 30 mi. N of Joshua Tree, CA
12/17 11:55 am 34 37.9 116 19.0 2.6 34 mi. N of Joshua Tree, CA
12/17 12:09 pm 33 20.4 116 24.2 2.5 6 mi. NNW of Borrego Springs, CA
12/17 12:24 pm 34 39.7 116 17.1 2.0 36 mi. N of Joshua Tree, CA
12/17 12:47 pm 34 34.5 116 15.6 2.2 30 mi. N of Joshua Tree, CA
12/17 1:37 pm 34 50.4 116 24.4 2.6 34 mi. SSW of Baker, CA
12/17 2:00 pm 34 55.5 116 24.0 2.1 29 mi. SW of Baker, CA
12/17 2:32 pm 34 38.2 116 17.7 2.0 34 mi. N of Joshua Tree, CA
12/17 5:52 pm 34 36.6 116 16.8 2.3 32 mi. N of Joshua Tree, CA
12/17 6:35 pm 34 26.0 116 17.1 2.6 20 mi. N of Joshua Tree, CA
12/17 6:55 pm 34 50.0 116 24.5 2.5 35 mi. SSW of Baker, CA
12/17 7:02 pm 34 36.3 116 17.8 2.2 32 mi. N of Joshua Tree, CA
12/17 7:41 pm 34 59.8 116 27.5 2.1 28 mi. SW of Baker, CA
12/17 7:41 pm 34 59.5 116 28.1 2.7 29 mi. SW of Baker, CA
12/17 7:48 pm 34 34.8 116 15.7 2.7 30 mi. N of Joshua Tree, CA
12/17 7:56 pm 35 7.5 118 39.1 2.1 11 mi. ESE of Arvin, CA
12/17 8:12 pm 34 35.5 116 16.7 2.0 31 mi. N of Joshua Tree, CA
12/17 9:47 pm 34 23.6 116 10.3 2.3 18 mi. NNW of Twentynine Palms, CA
12/17 10:19 pm 34 35.8 116 17.2 2.4 31 mi. N of Joshua Tree, CA
12/17 10:28 pm 34 9.0 117 27.3 2.4 3 mi. NNW of Fontana, CA
12/17 11:11 pm 34 29.4 116 15.5 2.0 24 mi. N of Joshua Tree, CA
12/17 11:31 pm 34 51.6 116 25.8 2.3 34 mi. SW of Baker, CA
12/18 3:40 am 34 42.7 116 17.5 2.0 39 mi. N of Joshua Tree, CA
12/18 5:21 am 34 49.3 116 19.9 2.5 33 mi. SSW of Baker, CA
12/18 7:20 am 34 18.3 116 27.0 2.9 12 mi. N of Yucca Valley, CA
12/18 7:41 am 34 6.3 117 0.7 2.3 5 mi. NNE of Yucaipa, CA
12/18 10:40 am 34 51.0 116 21.1 2.3 32 mi. SSW of Baker, CA
12/18 3:14 pm 33 54.6 117 46.6 2.1 2 mi. NE of Yorba Linda, CA
12/18 6:38 pm 34 36.8 116 13.5 2.2 33 mi. N of Joshua Tree, CA
12/18 11:46 pm 35 3.8 118 28.8 2.0 4 mi. SSW of Tehachapi, CA
12/19 12:03 am 34 36.3 116 15.7 2.4 32 mi. N of Joshua Tree, CA
12/19 1:48 am 34 41.4 116 18.8 2.5 38 mi. N of Joshua Tree, CA
12/19 3:35 am 34 51.1 116 24.6 2.2 34 mi. SW of Baker, CA
12/19 4:32 am 34 21.5 116 8.8 2.4 16 mi. NNW of Twentynine Palms, CA
12/19 6:43 am 34 51.6 116 24.1 2.4 33 mi. SSW of Baker, CA
12/19 11:16 am 34 17.9 116 4.7 2.3 11 mi. N of Twentynine Palms, CA
12/19 12:14 pm 34 25.1 116 28.2 2.1 20 mi. N of Yucca Valley, CA
12/19 3:42 pm 34 37.7 116 17.1 2.4 34 mi. N of Joshua Tree, CA
12/19 5:42 pm 34 37.7 116 14.6 2.0 34 mi. N of Joshua Tree, CA
12/19 6:39 pm 34 31.2 116 16.2 2.9 26 mi. N of Joshua Tree, CA
12/19 10:19 pm 34 35.0 116 16.4 2.4 30 mi. N of Joshua Tree, CA
12/19 11:31 pm 34 51.4 116 20.6 2.1 32 mi. SSW of Baker, CA
12/20 12:08 am 34 48.1 116 17.3 2.2 34 mi. SSW of Baker, CA
12/20 3:38 am 34 24.2 116 10.9 2.3 19 mi. NNW of Twentynine Palms, CA
12/20 4:05 am 34 41.5 116 18.7 3.0 38 mi. N of Joshua Tree, CA
12/20 4:07 am 34 41.3 116 18.8 3.3 38 mi. N of Joshua Tree, CA
12/20 4:50 am 34 31.4 116 16.5 2.3 26 mi. N of Joshua Tree, CA
12/20 6:18 am 34 31.9 116 17.9 2.6 27 mi. N of Joshua Tree, CA
12/20 12:44 pm 34 51.2 116 20.4 3.3 32 mi. SSW of Baker, CA
12/20 12:53 pm 34 51.5 116 20.4 2.3 31 mi. SSW of Baker, CA
12/20 1:08 pm 34 26.5 116 12.9 2.3 21 mi. NNE of Joshua Tree, CA
12/20 3:00 pm 34 38.9 116 17.3 2.4 35 mi. N of Joshua Tree, CA
12/20 4:02 pm 34 50.1 116 24.4 2.2 35 mi. SSW of Baker, CA
12/20 5:18 pm 34 36.3 116 17.6 2.2 32 mi. N of Joshua Tree, CA
12/20 8:38 pm 34 51.6 116 25.8 2.0 34 mi. SW of Baker, CA
12/20 9:54 pm 34 48.7 116 17.0 2.1 33 mi. SSW of Baker, CA
12/21 3:14 am 34 37.0 116 17.2 2.8 33 mi. N of Joshua Tree, CA
12/21 3:42 am 34 6.1 117 0.3 2.3 4 mi. NNE of Yucaipa, CA
12/21 4:28 am 34 34.5 116 17.6 2.3 30 mi. N of Joshua Tree, CA
12/21 5:21 am 34 31.1 116 19.1 2.2 26 mi. N of Joshua Tree, CA
12/21 5:36 am 34 41.7 116 21.7 2.1 38 mi. N of Joshua Tree, CA
12/21 6:17 am 34 41.6 116 21.1 2.3 38 mi. N of Joshua Tree, CA
12/21 7:21 am 33 9.4 115 39.2 2.1 1 mi. SW of Obsidian Butte, CA
12/21 12:37 pm 34 47.4 116 18.0 2.0 35 mi. SSW of Baker, CA
12/21 12:47 pm 34 31.2 116 18.1 2.2 26 mi. N of Joshua Tree, CA
12/21 2:15 pm 34 42.7 116 21.2 2.4 39 mi. N of Joshua Tree, CA
12/21 3:15 pm 34 3.0 117 4.7 2.2 2 mi. WNW of Yucaipa, CA
12/21 5:36 pm 34 32.5 119 12.8 2.6 6 mi. NNE of Ojai, CA
12/21 7:12 pm 34 39.6 116 17.0 2.3 36 mi. N of Joshua Tree, CA
12/21 9:00 pm 33 43.3 116 3.4 2.1 10 mi. N of Mecca, CA
12/21 10:19 pm 34 25.5 116 12.6 2.0 20 mi. NNE of Joshua Tree, CA
12/21 10:26 pm 34 25.2 116 11.6 2.2 20 mi. NNE of Joshua Tree, CA
12/21 10:31 pm 33 43.3 116 3.2 2.1 10 mi. N of Mecca, CA
12/22 1:11 am 34 37.2 116 15.1 3.1 33 mi. N of Joshua Tree, CA
12/22 1:16 am 34 37.1 116 15.0 3.1 33 mi. N of Joshua Tree, CA
12/22 1:28 am 33 5.8 116 3.1 2.9 5 mi. SE of Ocotillo Wells, CA
12/22 4:15 am 34 12.6 116 48.1 2.7 4 mi. SE of Big Bear City, CA
12/22 5:21 am 34 39.8 116 20.5 2.1 36 mi. N of Joshua Tree, CA
12/22 6:15 am 34 41.4 116 17.6 2.3 38 mi. N of Joshua Tree, CA
12/22 10:21 am 34 15.4 116 43.5 2.0 7 mi. E of Big Bear City, CA
12/22 12:31 pm 33 5.9 117 58.7 2.6 26 mi. SE of Avalon, Catalina Island, CA
12/22 3:35 pm 34 33.6 116 15.0 2.1 29 mi. N of Joshua Tree, CA
12/22 4:57 pm 35 16.2 118 35.9 2.4 12 mi. NW of Tehachapi, CA
12/22 5:58 pm 34 37.7 116 17.2 2.6 34 mi. N of Joshua Tree, CA
12/22 6:04 pm 34 42.9 116 22.0 2.2 40 mi. N of Joshua Tree, CA
12/22 6:55 pm 34 42.9 116 22.0 2.2 40 mi. N of Joshua Tree, CA
12/22 11:03 pm 33 37.0 116 42.1 2.1 4 mi. NNW of Anza, CA
12/23 1:56 am 34 47.1 116 17.6 2.6 35 mi. SSW of Baker, CA
12/23 6:30 am 34 35.5 116 15.9 4.1 31 mi. N of Joshua Tree, CA
FELT in Twentynine Palms area
12/23 8:28 am 34 24.5 116 11.5 2.3 20 mi. NNE of Joshua Tree, CA
12/23 11:51 am 34 15.6 116 46.2 2.1 4 mi. E of Big Bear City, CA
12/23 12:29 pm 34 11.8 117 4.4 2.5 1 mi. ESE of Running Springs, CA
12/23 12:32 pm 34 36.6 116 13.8 2.3 33 mi. N of Joshua Tree, CA
12/23 12:36 pm 34 27.7 116 18.1 2.0 22 mi. N of Joshua Tree, CA
12/23 2:19 pm 34 35.1 116 17.1 2.6 31 mi. N of Joshua Tree, CA
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