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 10:50:02 PM (PDT) on Thursday, September 9, 2021.
The magnitude 1.1 event occurred 3 km (2 miles) SSW of Imperial, CA.
The hypocentral depth is 11 km ( 7 miles).


Magnitude 1.1 - local magnitude (Ml)
Time Thursday, September 9, 2021 at 10:50:02 PM (PDT)
Friday, September 10, 2021 at 5:50:02 (UTC)
Distance from Imperial, CA - 3 km (2 miles) SSW (204 degrees)
El Centro, CA - 5 km (3 miles) NNW (332 degrees)
Heber, CA - 11 km (7 miles) NNW (335 degrees)
Calexico, CA - 18 km (11 miles) NNW (335 degrees)
Brawley, CA - 18 km (11 miles) SSW (196 degrees)
Coordinates 32 deg. 49.5 min. N (32.825N), 115 deg. 34.9 min. W (115.582W)
Depth 10.85 km (6.7 miles)
Quality Good
Location Quality Parameters Nst=17, Nph=26, Dmin=8.8 km, Rmss=0.18 sec, Erho=0.39 km, Erzz=0.73 km, Gp=99 degrees
Event ID# ci39803647
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