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View Full Version : Brawley Seismic Zone, California Activity



dgavin
2012-Aug-27, 07:25 PM
Major Earthquake Swarm in Brawley, CA. With a 5.3 and 5.5 mag quake included in the swarm activity.

According to news sources, some building damages, citizens reporting quakes start weak then get slowly stronger.

That sort of quake is normaly prevelent at volcanic regions.

The Brawley Seismic Zone is a unique area where the San Andreas fault starts, and the Imperial Fault ends, both a bit offset from each other. It is notable in that is does have have thinner crust at this location, and is relatively hot geologically. It's also know for swarms like this, that seem volcanic like in nature, but doesn't seem to lead to volcanism itself.

2.5 4km NNW of Brawley, California 2012-08-26 15:33:03 33.015N 115.552W 12.5
2.5 3km NNW of Brawley, California 2012-08-26 15:48:10 33.010N 115.548W 12.0
2.5 3km NW of Brawley, California 2012-08-26 15:48:23 32.998N 115.559W 11.4
2.5 4km NNW of Brawley, California 2012-08-26 16:18:15 33.018N 115.555W 12.4
3.8 5km NW of Brawley, California 2012-08-26 17:02:12 33.019N 115.563W 13.2
2.6 2km NW of Brawley, California 2012-08-26 17:03:40 32.996N 115.548W 6.0
2.9 4km NNW of Brawley, California 2012-08-26 17:13:52 33.017N 115.555W 12.7
3.3 5km NNW of Brawley, California 2012-08-26 17:16:02 33.023N 115.549W 13.4
2.5 4km NNW of Brawley, California 2012-08-26 17:17:22 33.017N 115.556W 12.2
2.6 4km NW of Brawley, California 2012-08-26 17:18:12 33.010N 115.556W 12.2
2.6 4km NNW of Brawley, California 2012-08-26 17:37:15 33.011N 115.551W 12.0
2.7 4km NW of Brawley, California 2012-08-26 18:11:24 33.015N 115.560W 12.7
2.6 4km NW of Brawley, California 2012-08-26 18:55:55 33.008N 115.560W 12.2
3.1 5km NNW of Brawley, California 2012-08-26 18:58:12 33.024N 115.546W 13.5
3.0 5km N of Brawley, California 2012-08-26 19:03:18 33.027N 115.538W 14.5
2.5 5km NNW of Brawley, California 2012-08-26 19:06:32 33.027N 115.542W 13.3
2.5 5km NNW of Brawley, California 2012-08-26 19:06:48 33.024N 115.541W 13.4
4.0 5km NNW of Brawley, California 2012-08-26 19:16:11 33.026N 115.547W 13.8
4.6 4km NNW of Brawley, California 2012-08-26 19:20:04 33.019N 115.545W 13.1
3.5 3km NNW of Brawley, California 2012-08-26 19:21:04 33.003N 115.546W 11.0
3.4 5km NNW of Brawley, California 2012-08-26 19:28:45 33.023N 115.561W 13.7
2.6 6km N of Brawley, California 2012-08-26 19:30:54 33.035N 115.536W 10.2
5.3 4km NNW of Brawley, California 2012-08-26 19:31:22 33.019N 115.546W 12.3
4.9 5km NNW of Brawley, California 2012-08-26 19:33:00 33.021N 115.554W 14.5
3.4 4km ENE of Brawley, California 2012-08-26 19:35:51 32.995N 115.485W 7.9
2.6 4km WNW of Brawley, California 2012-08-26 19:39:30 32.998N 115.572W 7.7
4.3 5km SSE of Westmorland, California 2012-08-26 19:40:12 32.990N 115.598W 13.8
3.0 5km N of Brawley, California 2012-08-26 19:43:41 33.023N 115.541W 10.6
3.2 4km WNW of Brawley, California 2012-08-26 19:45:55 32.994N 115.575W 0.2
2.5 4km WNW of Brawley, California 2012-08-26 19:47:08 32.989N 115.572W 12.4
2.8 5km NNW of Brawley, California 2012-08-26 19:48:03 33.021N 115.559W 24.8
3.4 4km SE of Westmorland, California 2012-08-26 19:50:14 33.007N 115.586W 12.8
2.8 3km NNW of Brawley, California 2012-08-26 19:57:33 33.010N 115.541W 9.8
3.6 5km N of Brawley, California 2012-08-26 19:58:17 33.025N 115.541W 13.6
2.5 4km NW of Brawley, California 2012-08-26 20:04:50 33.008N 115.559W 9.6
2.9 5km N of Brawley, California 2012-08-26 20:06:10 33.029N 115.537W 3.6
2.5 7km SW of Brawley, California 2012-08-26 20:08:31 32.928N 115.577W 7.9
2.6 3km NW of Brawley, California 2012-08-26 20:10:13 33.000N 115.561W 11.1
3.0 5km WNW of Brawley, California 2012-08-26 20:14:46 32.996N 115.582W 12.5
2.5 5km N of Brawley, California 2012-08-26 20:16:42 33.029N 115.535W 10.0
3.5 4km NW of Brawley, California 2012-08-26 20:16:54 33.012N 115.564W 12.7
3.4 5km NNW of Brawley, California 2012-08-26 20:20:24 33.026N 115.543W 11.9
2.5 3km NW of Brawley, California 2012-08-26 20:24:52 33.007N 115.554W 12.0
2.5 3km NW of Brawley, California 2012-08-26 20:28:19 33.004N 115.553W 12.0
2.8 3km N of Brawley, California 2012-08-26 20:28:57 33.009N 115.528W 9.6
3.1 5km NNW of Brawley, California 2012-08-26 20:31:13 33.024N 115.543W 4.7
2.5 3km N of Brawley, California 2012-08-26 20:33:01 33.008N 115.530W 0.8
2.6 5km NNW of Brawley, California 2012-08-26 20:45:48 33.030N 115.545W 12.2
5.5 5km NNW of Brawley, California 2012-08-26 20:57:58 33.024N 115.550W 9.0
3.1 5km N of Brawley, California 2012-08-26 21:05:11 33.027N 115.535W 5.1
3.6 5km WNW of Brawley, California 2012-08-26 21:08:45 32.997N 115.587W 11.4
2.9 5km WSW of Brawley, California 2012-08-26 21:12:37 32.959N 115.585W 0.0
2.8 5km N of Brawley, California 2012-08-26 21:13:59 33.026N 115.524W 11.9
4.2 7km N of Brawley, California 2012-08-26 21:15:29 33.042N 115.539W 9.1
3.9 5km SSE of Westmorland, California 2012-08-26 21:17:26 32.986N 115.603W 11.8
2.7 3km N of Brawley, California 2012-08-26 21:19:01 33.013N 115.536W 0.0
2.5 2km W of Brawley, California 2012-08-26 21:19:34 32.974N 115.562W 1.4
2.8 4km N of Brawley, California 2012-08-26 21:20:06 33.022N 115.536W 10.0
2.6 5km N of Brawley, California 2012-08-26 21:20:23 33.032N 115.524W 4.3
2.9 5km W of Brawley, California 2012-08-26 21:21:22 32.970N 115.589W 12.9
2.9 2km NW of Brawley, California 2012-08-26 21:21:56 32.999N 115.549W 0.3
3.5 5km WNW of Brawley, California 2012-08-26 21:23:23 32.999N 115.590W 14.3
3.8 6km N of Brawley, California 2012-08-26 21:26:39 33.039N 115.527W 12.4
2.5 4km NW of Brawley, California 2012-08-26 21:30:54 33.005N 115.565W 12.4
2.7 5km N of Brawley, California 2012-08-26 21:34:48 33.027N 115.532W 11.8
2.5 4km ENE of Westmorland, California 2012-08-26 21:37:49 33.051N 115.577W 0.0
2.9 4km NNW of Brawley, California 2012-08-26 21:42:51 33.022N 115.541W 11.5
2.5 2km SW of Brawley, California 2012-08-26 21:45:25 32.967N 115.551W 13.1
3.1 5km WNW of Brawley, California 2012-08-26 21:46:11 32.996N 115.591W 12.5
2.7 5km N of Brawley, California 2012-08-26 21:47:18 33.026N 115.538W 10.9
3.0 2km WSW of Brawley, California 2012-08-26 21:53:58 32.971N 115.551W 14.8
3.0 4km SE of Westmorland, California 2012-08-26 21:54:16 33.004N 115.586W 16.2
3.0 5km N of Brawley, California 2012-08-26 22:01:59 33.028N 115.541W 13.4
3.4 4km NNW of Brawley, California 2012-08-26 22:06:28 33.014N 115.539W 9.6
2.8 5km NNW of Brawley, California 2012-08-26 22:08:05 33.021N 115.549W 14.1
2.7 4km WNW of Brawley, California 2012-08-26 22:13:03 32.999N 115.578W 15.8
2.7 11km SSW of Westmorland, California 2012-08-26 22:16:03 32.939N 115.670W 0.0
2.8 4km E of Brawley, California 2012-08-26 22:16:23 32.983N 115.485W 9.5
2.8 3km WSW of Brawley, California 2012-08-26 22:22:35 32.963N 115.564W 12.7
2.8 6km SSW of Brawley, California 2012-08-26 22:22:53 32.923N 115.555W 12.3
3.0 9km E of Brawley, California 2012-08-26 22:23:57 32.989N 115.428W 6.0
2.8 5km SSE of Westmorland, California 2012-08-26 22:34:04 32.992N 115.593W 13.9
3.5 4km SE of Westmorland, California 2012-08-26 22:34:45 33.007N 115.589W 13.6
2.5 4km WNW of Brawley, California 2012-08-26 22:51:22 32.997N 115.570W 0.1
3.4 5km WNW of Brawley, California 2012-08-26 22:52:09 32.998N 115.589W 12.4
3.4 5km NNW of Brawley, California 2012-08-26 22:53:35 33.023N 115.553W 12.5
4.3 5km WNW of Brawley, California 2012-08-26 22:58:41 32.990N 115.590W 13.0
2.6 5km N of Brawley, California 2012-08-26 23:13:45 33.032N 115.536W 12.9
2.6 4km NW of Brawley, California 2012-08-26 23:16:22 33.007N 115.565W 13.0
2.7 4km NNW of Brawley, California 2012-08-26 23:21:05 33.021N 115.542W 13.3
4.6 6km N of Brawley, California 2012-08-26 23:33:25 33.033N 115.531W 9.2
3.4 2km NNW of Brawley, California 2012-08-26 23:34:50 33.001N 115.547W 5.2
3.8 8km N of Brawley, California 2012-08-26 23:36:58 33.052N 115.533W 7.7
3.2 6km N of Brawley, California 2012-08-26 23:53:14 33.034N 115.536W 13.5
2.9 6km NNW of Brawley, California 2012-08-27 00:12:26 33.037N 115.549W 8.9
2.9 4km SSE of Westmorland, California 2012-08-27 00:13:45 33.005N 115.596W 18.0
3.4 4km N of Brawley, California 2012-08-27 00:58:34 33.018N 115.539W 0.1
3.4 4km WNW of Brawley, California 2012-08-27 00:58:45 32.998N 115.579W 13.0
2.5 5km N of Brawley, California 2012-08-27 02:28:10 33.023N 115.540W 14.0
2.5 4km NNW of Brawley, California 2012-08-27 02:47:23 33.009N 115.554W 12.6
3.2 6km S of Westmorland, California 2012-08-27 02:53:15 32.977N 115.609W 13.2
3.1 5km WNW of Brawley, California 2012-08-27 03:03:33 32.993N 115.588W 13.6
2.5 4km NNW of Brawley, California 2012-08-27 03:18:47 33.021N 115.547W 14.5
2.7 7km E of Brawley, California 2012-08-27 03:29:40 32.987N 115.455W 4.5
2.5 4km NNW of Brawley, California 2012-08-27 03:41:40 33.014N 115.547W 13.6
2.7 5km SSE of Westmorland, California 2012-08-27 04:20:13 32.988N 115.595W 12.7
4.9 5km N of Brawley, California 2012-08-27 04:41:36 33.030N 115.531W 9.0
3.4 6km ENE of Brawley, California 2012-08-27 04:46:13 32.991N 115.463W 5.0
2.6 7km ENE of Brawley, California 2012-08-27 04:53:17 33.011N 115.458W 9.6
2.8 7km N of Brawley, California 2012-08-27 04:57:04 33.050N 115.542W 8.8
2.8 3km NNW of Brawley, California 2012-08-27 04:59:36 33.009N 115.548W 10.6
2.9 7km N of Brawley, California 2012-08-27 05:01:21 33.050N 115.530W 12.6
3.3 7km ENE of Westmorland, California 2012-08-27 05:09:05 33.056N 115.544W 8.1
2.9 9km ENE of Brawley, California 2012-08-27 05:11:55 33.021N 115.447W 3.0
2.9 4km ENE of Westmorland, California 2012-08-27 05:20:51 33.054N 115.582W 0.3
2.9 7km S of Brawley, California 2012-08-27 05:39:43 32.913N 115.532W 14.5
3.0 6km N of Brawley, California 2012-08-27 05:47:24 33.040N 115.532W 12.3
3.4 10km ENE of Brawley, California 2012-08-27 06:31:27 33.023N 115.433W 7.4
3.0 4km W of Brawley, California 2012-08-27 07:32:06 32.979N 115.579W 14.9
2.5 5km NNW of Brawley, California 2012-08-27 07:50:59 33.026N 115.542W 13.9
2.5 1km S of Brawley, California 2012-08-27 07:53:37 32.961N 115.531W 3.5
2.6 8km SSW of Calipatria, California 2012-08-27 08:58:22 33.056N 115.537W 8.7
2.5 5km SSE of Brawley, California 2012-08-27 14:44:39 32.928N 115.507W 9.7
2.5 4km WNW of Brawley, California 2012-08-27 17:04:31 32.991N 115.577W 12.5
2.8 9km SW of Brawley, California 2012-08-27 17:14:09 32.926N 115.605W 8.3
2.7 7km N of Brawley, California 2012-08-27 17:44:26 33.043N 115.543W 10.3
3.8 4km NW of Brawley, California 2012-08-27 17:47:51 33.010N 115.564W 12.2
3.0 2km SW of Brawley, California 2012-08-27 18:05:58 32.961N 115.549W 12.8

dgavin
2012-Aug-31, 06:58 PM
This swarm has been slowing down the last few days, evidently there has been quite a bit of damage in Brawley, but no fatalities.