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 is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 0:28:43 AM (PDT) on Friday, September 12, 2025.
The magnitude 1.7 event occurred 22 km (14 miles) SE of Mammoth Lakes, CA.
The hypocentral depth is 4 km ( 3 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Friday, September 12, 2025 at 0:28:43 AM (PDT)
Friday, September 12, 2025 at 7:28:43 (UTC)
Distance from Mammoth Lakes, CA - 22 km (14 miles) SE (129 degrees)
West Bishop, CA - 33 km (21 miles) WNW (300 degrees)
Dixon Lane-Meadow Creek, CA - 35 km (22 miles) WNW (293 degrees)
Bishop, CA - 38 km (23 miles) WNW (296 degrees)
Big Pine, CA - 58 km (36 miles) NW (312 degrees)
Coordinates 37 deg. 30.7 min. N (37.511N), 118 deg. 46.9 min. W (118.781W)
Depth 4.25 km (2.60 miles)
Quality Good
Location Quality Parameters Nst=26, Nph=25, Dmin=9.8 km, Rmss=0.05 sec, Erho=0.23 km, Erzz=1.09000003 km, Gp=110 degrees
Event ID# nc75236822
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