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 7:02:30 PM (PST) on Tuesday, February 18, 2025.
The magnitude 1.6 event occurred 6 km (4 miles) SE of Chester, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 1.6 - duration magnitude (Md)
Time Tuesday, February 18, 2025 at 7:02:30 PM (PST)
Wednesday, February 19, 2025 at 3:02:30 (UTC)
Distance from Chester, CA - 6 km (4 miles) SE (130 degrees)
Greenville, CA - 24 km (15 miles) NW (307 degrees)
Quincy, CA - 42 km (26 miles) NNW (332 degrees)
East Quincy, CA - 45 km (28 miles) NNW (328 degrees)
Susanville, CA - 48 km (30 miles) WSW (251 degrees)
Coordinates 40 deg. 16.3 min. N (40.272N), 121 deg. 10.7 min. W (121.179W)
Depth 2.72 km (1.70 miles)
Quality Poor
Location Quality Parameters Nst=4, Nph=4, Dmin=17.1 km, Rmss=0.01 sec, Erho=0.75 km, Erzz=7.38000011 km, Gp=151 degrees
Event ID# nc75135977
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