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

A micro earthquake occurred at 12:04:38 PM (PDT) on Thursday, July 22, 2021.
The magnitude 2.3 event occurred 7 km (4 miles) W of Holtville, CA.
The hypocentral depth is 12 km ( 8 miles).


Magnitude 2.3 - local magnitude (Ml)
Time Thursday, July 22, 2021 at 12:04:38 PM (PDT)
Thursday, July 22, 2021 at 19:04:38 (UTC)
Distance from Holtville, CA - 7 km (4 miles) W (260 degrees)
El Centro, CA - 10 km (6 miles) E (82 degrees)
Heber, CA - 10 km (6 miles) NE (42 degrees)
Imperial, CA - 12 km (7 miles) ESE (116 degrees)
Calexico, CA - 14 km (9 miles) NNE (17 degrees)
Coordinates 32 deg. 48.0 min. N (32.800N), 115 deg. 27.3 min. W (115.454W)
Depth 12.02 km (7.5 miles)
Quality Good
Location Quality Parameters Nst=33, Nph=58, Dmin=0.9 km, Rmss=0.3 sec, Erho=0.32 km, Erzz=0.45 km, Gp=33 degrees
Event ID# ci39750031
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