Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 1:51:29 PM (PDT) on Sunday, May 2, 2021.
The magnitude 2.1 event occurred 1 km (1 miles) WNW of Danville, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 2.1 - duration magnitude (Md)
Time Sunday, May 2, 2021 at 1:51:29 PM (PDT)
Sunday, May 2, 2021 at 20:51:29 (UTC)
Distance from Danville, CA - 1 km (1 miles) WNW (290 degrees)
Alamo, CA - 3 km (2 miles) SE (146 degrees)
Diablo, CA - 5 km (3 miles) WSW (256 degrees)
San Ramon, CA - 6 km (4 miles) NNW (330 degrees)
Saranap, CA - 9 km (5 miles) SE (139 degrees)
Coordinates 37 deg. 49.5 min. N (37.825N), 122 deg. 0.6 min. W (122.011W)
Depth 7.28 km (4.5 miles)
Quality Excellent
Location Quality Parameters Nst=54, Nph=67, Dmin=2.3 km, Rmss=0.09 sec, Erho=0.1 km, Erzz=0.21 km, Gp=48 degrees
Event ID# nc73557300
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For more information, see https://earthquake.usgs.gov

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