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 4:05:35 AM (PST) on Sunday, February 21, 2021.
The magnitude 1.2 event occurred 9 km (6 miles) NE (36 degrees) of Milpitas, CA.
The hypocentral depth is 9 km ( 5 miles).


Magnitude 1.2 - duration magnitude (Md)
Time Sunday, February 21, 2021 at 4:05:35 AM (PST)
Sunday, February 21, 2021 at 12:05:35 (UTC)
Distance from Milpitas, CA - 9 km (6 miles) NE (36 degrees)
Fremont, CA - 13 km (8 miles) ESE (114 degrees)
East Foothills, CA - 13 km (8 miles) N (349 degrees)
Alum Rock, CA - 14 km (9 miles) N (353 degrees)
Newark, CA - 18 km (11 miles) ESE (103 degrees)
Coordinates 37 deg. 29.7 min. N (37.495N), 121 deg. 50.7 min. W (121.846W)
Depth 8.58 km (5.3 miles)
Quality Excellent
Location Quality Parameters Nst=34, Nph=37, Dmin=5.2 km, Rmss=0.08 sec, Erho=0.19 km, Erzz=0.44 km, Gp=58 degrees
Event ID# nc73525941
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For more information, see https://earthquake.usgs.gov

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