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 12:42:27 PM (PDT) on Sunday, September 21, 2025.
The magnitude 1.2 event occurred 14 km (9 miles) E (97 degrees) of Mammoth Lakes, CA.
The hypocentral depth is 7 km ( 5 miles).


Magnitude 1.2 - duration magnitude (Md)
Time Sunday, September 21, 2025 at 12:42:27 PM (PDT)
Sunday, September 21, 2025 at 19:42:27 (UTC)
Distance from Mammoth Lakes, CA - 14 km (9 miles) E (97 degrees)
West Bishop, CA - 44 km (27 miles) NW (312 degrees)
Dixon Lane-Meadow Creek, CA - 45 km (28 miles) NW (306 degrees)
Bishop, CA - 47 km (29 miles) NW (307 degrees)
Yosemite Valley, CA - 68 km (42 miles) E (101 degrees)
Coordinates 37 deg. 37.3 min. N (37.621N), 118 deg. 49.4 min. W (118.824W)
Depth 7.45 km (4.60 miles)
Quality Fair
Location Quality Parameters Nst=11, Nph=11, Dmin=2.1 km, Rmss=0.02 sec, Erho=1.01 km, Erzz=1.13999999 km, Gp=181 degrees
Event ID# nc75240337
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