Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #0: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 5:55:32 AM (PDT) on Thursday, September 25, 2025.
The magnitude 2.8 event occurred 3 km (2 miles) ESE of Berkeley, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 2.8 - local magnitude (Ml)
Time Thursday, September 25, 2025 at 5:55:32 AM (PDT)
Thursday, September 25, 2025 at 12:55:32 (UTC)
Distance from Berkeley, CA - 3 km (2 miles) ESE (118 degrees)
Piedmont, CA - 4 km (2 miles) NNW (347 degrees)
Emeryville, CA - 5 km (3 miles) NE (53 degrees)
Albany, CA - 6 km (4 miles) ESE (123 degrees)
Orinda, CA - 6 km (4 miles) WSW (248 degrees)
Coordinates 37 deg. 51.5 min. N (37.858N), 122 deg. 14.5 min. W (122.241W)
Depth 8.38 km (5.20 miles)
Quality Fair
Location Quality Parameters Nst=70, Nph=71, Dmin=2.8 km, Rmss=0.82 sec, Erho=1.6 km, Erzz=1.992 km, Gp=21 degrees
Event ID# nc75241837
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