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== 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 1:49:35 PM (PDT) on Thursday, March 26, 2020.
The magnitude 1.4 event occurred 4 km (3 miles) E (80 degrees) of San Ramon, CA.
The hypocentral depth is 17 km (10 miles).



Magnitude 1.4 - duration magnitude (Md)
Time Thursday, March 26, 2020 at 1:49:35 PM (PDT)
Thursday, March 26, 2020 at 20:49:35 (UTC)
Distance from San Ramon, CA - 4 km (3 miles) E (80 degrees)
Blackhawk, CA - 4 km (3 miles) SSW (210 degrees)
Diablo, CA - 6 km (4 miles) SSE (158 degrees)
Danville, CA - 7 km (4 miles) SE (124 degrees)
Dublin, CA - 9 km (6 miles) N (2 degrees)
Coordinates 37 deg. 47.2 min. N (37.786N), 121 deg. 56.0 min. W (121.933W)
Depth 16.73 km (10.4 miles)
Quality Excellent
Location Quality Parameters Nst=23, Nph=25, Dmin=9.6 km, Rmss=0.07 sec, Erho=0.28 km, Erzz=0.63 km, Gp=65 degrees
Event ID# nc73359910
Additional Information map || waveforms
  

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