Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

Seismological Laboratory, University of Nevada, Reno


Version #904736: 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 3:16:53 AM (PDT) on Sunday, September 21, 2025.
The magnitude 1.4 event occurred 56 km (35 miles) NE (39 degrees) of Mammoth Lakes, CA.
The hypocentral depth is 0.00 km (0.00 miles).


Magnitude 1.4 - local magnitude (Ml)
Time Sunday, September 21, 2025 at 3:16:53 AM (PDT)
Sunday, September 21, 2025 at 10:16:53 (UTC)
Distance from Mammoth Lakes, CA - 56 km (35 miles) NE (39 degrees)
Hawthorne, NV - 56 km (35 miles) S (176 degrees)
Dixon Lane-Meadow Creek, CA - 73 km (45 miles) N (349 degrees)
West Bishop, CA - 75 km (46 miles) N (352 degrees)
Bishop, CA - 75 km (47 miles) NNW (348 degrees)
Coordinates 38 deg. 1.6 min. N (38.026N), 118 deg. 34.5 min. W (118.576W)
Depth 0.00 km (0.00 miles)
Quality Fair
Location Quality Parameters Nst=11, Nph=11, Dmin=25.8 km, Rmss=0.3322 sec, Erho=0 km, Erzz=23.7 km, Gp=175.02999999999997 degrees
Event ID# nn00904736
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