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 12:51:05 PM (PDT) on Thursday, July 22, 2021.
The magnitude 1.6 event occurred 7 km (4 miles) WSW of Holtville, CA.
The hypocentral depth is 9 km ( 6 miles).


Magnitude 1.6 - local magnitude (Ml)
Time Thursday, July 22, 2021 at 12:51:05 PM (PDT)
Thursday, July 22, 2021 at 19:51:05 (UTC)
Distance from Holtville, CA - 7 km (4 miles) WSW (254 degrees)
El Centro, CA - 10 km (6 miles) E (86 degrees)
Heber, CA - 10 km (6 miles) NE (46 degrees)
Imperial, CA - 13 km (8 miles) ESE (118 degrees)
Calexico, CA - 14 km (8 miles) NNE (19 degrees)
Coordinates 32 deg. 47.7 min. N (32.794N), 115 deg. 27.1 min. W (115.451W)
Depth 9.03 km (5.6 miles)
Quality Fair
Location Quality Parameters Nst=22, Nph=39, Dmin=1.3 km, Rmss=0.25 sec, Erho=0.47 km, Erzz=0.7 km, Gp=142 degrees
Event ID# ci39750095
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