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 8:50:04 PM (PDT) on Monday, July 17, 2023.
The magnitude 1.1 event occurred 4 km (2 miles) N (8 degrees) of Big Bear City, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.1 - local magnitude (Ml)
Time Monday, July 17, 2023 at 8:50:04 PM (PDT)
Tuesday, July 18, 2023 at 3:50:04 (UTC)
Distance from Big Bear City, CA - 4 km (2 miles) N (8 degrees)
Big Bear Lake, CA - 9 km (5 miles) NE (50 degrees)
Lucerne Valley, CA - 20 km (13 miles) SE (145 degrees)
Running Springs, CA - 27 km (17 miles) ENE (69 degrees)
Lake Arrowhead, CA - 33 km (20 miles) E (81 degrees)
Coordinates 34 deg. 17.6 min. N (34.294N), 116 deg. 50.4 min. W (116.840W)
Depth 7.06 km (4.4 miles)
Quality Good
Location Quality Parameters Nst=40, Nph=66, Dmin=6.1 km, Rmss=0.16 sec, Erho=0.19 km, Erzz=0.53 km, Gp=42 degrees
Event ID# ci39615218
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