Recent Earthquakes in California and Nevada


== PRELIMINARY EVENT REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California


Version #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro quarry occurred at 11:59:30 AM (PST) on Tuesday, February 18, 2025.
The magnitude 1.1 event (a probable quarry explosion) occurred 13 km (8 miles) SE of Tehachapi, CA.
The hypocentral depth is -1 km (-1 miles).


Magnitude 1.1 - local magnitude (Ml)
Time Tuesday, February 18, 2025 at 11:59:30 AM (PST)
Tuesday, February 18, 2025 at 19:59:30 (UTC)
Distance from Tehachapi, CA - 13 km (8 miles) SE (128 degrees)
Mojave, CA - 15 km (9 miles) W (273 degrees)
Rosamond, CA - 27 km (17 miles) NW (324 degrees)
California City, CA - 33 km (20 miles) WSW (257 degrees)
Neenach, CA - 40 km (25 miles) NE (38 degrees)
Coordinates 35 deg. 3.6 min. N (35.060N), 118 deg. 20.2 min. W (118.337W)
Depth -1.11 km (-0.70 miles)
Quality Fair
Location Quality Parameters Nst=24, Nph=24, Dmin=7.7 km, Rmss=0.18 sec, Erho=0.35 km, Erzz=31.61 km, Gp=43 degrees
Event ID# ci40188386
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