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 10:08:28 AM (PST) on Sunday, December 21, 2025.
The magnitude 1.4 event occurred 15 km (9 miles) SE of Mammoth Lakes, CA.
The hypocentral depth is 7 km ( 5 miles).


Magnitude 1.4 - duration magnitude (Md)
Time Sunday, December 21, 2025 at 10:08:28 AM (PST)
Sunday, December 21, 2025 at 18:08:28 (UTC)
Distance from Mammoth Lakes, CA - 15 km (9 miles) SE (127 degrees)
West Bishop, CA - 40 km (25 miles) WNW (302 degrees)
Dixon Lane-Meadow Creek, CA - 42 km (26 miles) WNW (297 degrees)
Bishop, CA - 45 km (28 miles) WNW (298 degrees)
Big Pine, CA - 65 km (41 miles) NW (312 degrees)
Coordinates 37 deg. 33.3 min. N (37.555N), 118 deg. 50.5 min. W (118.841W)
Depth 7.41 km (4.60 miles)
Quality Good
Location Quality Parameters Nst=9, Nph=9, Dmin=4.0 km, Rmss=0.05 sec, Erho=0.47 km, Erzz=1.12 km, Gp=115 degrees
Event ID# nc75284191
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For more information, see https://earthquake.usgs.gov

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