Image:120-36.gif

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Parkfield activity - big quake Sept 28, 2004 10:15 AM PDT plus 33 hours of aftershocks. USGS public domain image.

Taken from USGS site for 120W, 36N (click for current and recent activity)

Excerpt of earthquake list - only magnitude 3.0 and greater (reverse chronological order)

4.5  2004/09/29 10:12:06 35.952N 120.492W 10.2    8 km ( 5 mi) NW  of Parkfield
5.0  2004/09/29 10:10:04 35.953N 120.502W 11.5    9 km ( 5 mi) NW  of Parkfield,
3.1  2004/09/29 09:11:51 36.139N 120.207W  7.8   12 km ( 7 mi) SW  of Huron
3.2  2004/09/29 02:04:07 36.644N 120.880W  0.0   27 km (17 mi) ENE of Pinnacles
3.4  2004/09/28 18:53:35 35.893N 120.446W  5.8    1 km ( 1 mi) WSW of Parkfield
3.0  2004/09/28 12:59:27 35.903N 120.449W  6.2    2 km ( 1 mi) W   of Parkfield
4.0  2004/09/28 12:31:27 35.839N 120.387W  9.3    8 km ( 5 mi) SSE of Parkfield
3.1  2004/09/28 12:23:39 35.830N 120.379W  6.6    9 km ( 6 mi) SSE of Parkfield
3.6  2004/09/28 10:35:17 35.947N 120.489W 10.2    7 km ( 5 mi) NW  of Parkfield
3.7  2004/09/28 10:33:55 35.817N 120.359W  7.1   11 km ( 7 mi) SE  of Parkfield
3.2  2004/09/28 10:29:41 35.829N 120.369W  9.4   10 km ( 6 mi) SE  of Parkfield
3.3  2004/09/28 10:29:22 35.836N 120.380W  9.0    8 km ( 5 mi) SSE of Parkfield
3.4  2004/09/28 10:29:15 35.852N 120.401W  5.3    6 km ( 4 mi) SSE of Parkfield
4.7  2004/09/28 10:24:15 35.806N 120.349W  6.7   13 km ( 8 mi) SE  of Parkfield
3.0  2004/09/28 10:22:22 35.910N 120.458W  6.6    3 km ( 2 mi) WNW of Parkfield
4.1  2004/09/28 10:22:18 35.840N 120.388W  5.6    8 km ( 5 mi) SSE of Parkfield
5.0  2004/09/28 10:19:06 35.855N 120.411W  8.6    5 km ( 3 mi) SSE of Parkfield STRONGEST AFTERSHOCK
6.0  2004/09/28 10:15:24 35.815N 120.374W  7.9   11 km ( 7 mi) SSE of Parkfield MAIN SHOCK
3.4  2004/09/26 19:00:06 36.160N 120.662W  5.5   27 km (17 mi) NE  of San Ardo
3.7  2004/09/26 08:54:05 36.155N 120.654W  5.0   27 km (17 mi) W   of Coalinga


Public Domain

This image is a work of a United States Geological Survey employee, taken or made during the course of the person's official duties. As a work of the United States Government, the image is in the public domain. For more information, see the USGS copyright policy.

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