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 3:01:24 AM (PDT) on Monday, July 28, 2025.
The magnitude 1.0 event occurred 4 km (3 miles) E (93 degrees) of Talmage, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.0 - duration magnitude (Md)
Time Monday, July 28, 2025 at 3:01:24 AM (PDT)
Monday, July 28, 2025 at 10:01:24 (UTC)
Distance from Talmage, CA - 4 km (3 miles) E (93 degrees)
Ukiah, CA - 8 km (5 miles) ESE (104 degrees)
Redwood Valley, CA - 17 km (10 miles) SSE (153 degrees)
Upper Lake, CA - 18 km (11 miles) WSW (258 degrees)
North Lakeport, CA - 19 km (12 miles) WNW (285 degrees)
Coordinates 39 deg. 7.9 min. N (39.131N), 123 deg. 7.0 min. W (123.116W)
Depth 6.34 km (3.90 miles)
Quality Good
Location Quality Parameters Nst=8, Nph=8, Dmin=3.4 km, Rmss=0.02 sec, Erho=0.43 km, Erzz=0.850000024 km, Gp=150 degrees
Event ID# nc75216137
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For more information, see https://earthquake.usgs.gov

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