Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 5:53:58 AM (PDT) on Tuesday, August 18, 2026.
The magnitude 0.9 event occurred 11 km (7 miles) NE (47 degrees) of Running Springs, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Tuesday, August 18, 2026 at 5:53:58 AM (PDT)
Tuesday, August 18, 2026 at 12:53:58 (UTC)
Distance from Running Springs, CA - 11 km (7 miles) NE (47 degrees)
Big Bear Lake, CA - 11 km (7 miles) WNW (290 degrees)
Lake Arrowhead, CA - 16 km (10 miles) E (79 degrees)
Big Bear City, CA - 16 km (10 miles) W (276 degrees)
Lucerne Valley, CA - 19 km (12 miles) SSW (194 degrees)
Coordinates 34 deg. 16.5 min. N (34.276N), 117 deg. 1.2 min. W (117.020W)
Depth 5.67 km (3.50 miles)
Quality Good
Location Quality Parameters Nst=41, Nph=68, Dmin=2.5 km, Rmss=0.2 sec, Erho=0.21 km, Erzz=0.4 km, Gp=51 degrees
Event ID# ci41529136
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