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 11:09:50 AM (PDT) on Tuesday, July 18, 2023.
The magnitude 1.8 event occurred 19 km (12 miles) ESE of Tijuana, B.C., MX.
The hypocentral depth is 14 km ( 9 miles).


Magnitude 1.8 - local magnitude (Ml)
Time Tuesday, July 18, 2023 at 11:09:50 AM (PDT)
Tuesday, July 18, 2023 at 18:09:50 (UTC)
Distance from Tijuana, B.C., MX - 19 km (12 miles) ESE (121 degrees)
Rosarito, B.C., MX - 21 km (13 miles) NE (56 degrees)
San Ysidro, CA - 22 km (14 miles) SE (124 degrees)
Tecate, B.C., MX - 24 km (15 miles) SW (235 degrees)
Primo Tapia, B.C., MX - 25 km (16 miles) NNE (15 degrees)
Coordinates 32 deg. 26.4 min. N (32.440N), 116 deg. 50.7 min. W (116.845W)
Depth 14.32 km (8.9 miles)
Quality Fair
Location Quality Parameters Nst=32, Nph=54, Dmin=19.6 km, Rmss=0.18 sec, Erho=0.34 km, Erzz=0.46 km, Gp=138 degrees
Event ID# ci39615618
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