Special Reports
Regional Location:

Preliminary Magnitude:

Greenwich Mean Date:
Greenwich Mean Time:
Latitude:
Longitude:
Focal Depth:

BRIDGEPORT, CA

Ml 3.6 (NCSN)

02/08/10
05:41:31
38.189 N
119.240 W
18.1 km (11.2 miles)

Small quakes shake eastern Sierra

Seismo-Watch More Special Earthquake Reports

August 10, 2002

Two small earthquakes measuring M 3.6 and M 3.0 occurred last night along the eastern Sierra near Bridgeport, California, stirring a few people from sleep but not causing any damage or injuries.

Seismo-Watch EQ Flash! Alert Bulletins notified subscribers of this earthquake within minutes after it happened. You should subscribe to the service too! It's FREE and Fast! NOW!! Wireless EQ Flash! via pager, cell phone or PDA's! More info.

According to the Northern California Seismic Network (NCSN), the first earthquake registered a magnitude (Ml) 3.6 and occurred at 5:41:04 GMT, August 11, or 10:41 p.m. PDT, August 10, about 5 miles south of Bridgeport in the upper reaches of Bridgeport Valley, near the confluence of Summer and Green Creeks. See a Topozone topographic map or a MapQuest street map. See USGS real time earthquake epicenter map.

The focal depth was rather deep for quakes in this area, some 18 km beneath the surface.

Foreshocks and Aftershocks
There were no foreshocks, but an aftershock registering M 3.1 occurred at 2:24 a.m. the following morning, about four hours after the initial jolt.

Felt Reports
The main quake was felt by a few people in the area and as far away as Mariposa and Yosemite Valley on the western side of the range. See the
USGS Community Intensity Report.

Background Information

More will be added shortly. Check the Seismo-Watch PNW Report for recent regional activity. Be sure to check the archive for past reports.

Additional seismic information links:

Mainstream media news reports:
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  • None.
Report update: 7:33:20 AM, Sunday, August 11, 2002
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