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 9:46:45 AM (PDT) on Thursday, September 11, 2025.
The magnitude 1.7 event occurred 26 km (16 miles) SSW of Mammoth Lakes, CA.
The hypocentral depth is 17 km (11 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Thursday, September 11, 2025 at 9:46:45 AM (PDT)
Thursday, September 11, 2025 at 16:46:45 (UTC)
Distance from Mammoth Lakes, CA - 26 km (16 miles) SSW (211 degrees)
Oakhurst, CA - 48 km (30 miles) ENE (75 degrees)
Auberry, CA - 51 km (31 miles) NE (39 degrees)
Yosemite Valley, CA - 52 km (32 miles) SE (130 degrees)
Ahwahnee, CA - 53 km (33 miles) E (81 degrees)
Coordinates 37 deg. 26.2 min. N (37.437N), 119 deg. 7.7 min. W (119.128W)
Depth 17.49 km (10.90 miles)
Quality Good
Location Quality Parameters Nst=18, Nph=18, Dmin=8.1 km, Rmss=0.08 sec, Erho=0.45 km, Erzz=0.920000017 km, Gp=102 degrees
Event ID# nc75236467
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