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Southern California Earthquake Data Center

Recent Earthquakes

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 7:08:23 AM (PDT) on Friday, May 3, 2013.
The magnitude 1.8 event occurred 7 km (4 miles) W of Palomar Observatory, CA.
The hypocentral depth is 11 km ( 7 miles).




Magnitude 1.8 - local magnitude (Ml)
Time Friday, May 3, 2013 at 7:08:23 AM (PDT)
Friday, May 3, 2013 at 14:08:23 (UTC)
Distance from Palomar Observatory, CA - 7 km (4 miles) W (279 degrees)
Lake Henshaw, CA - 21 km (13 miles) NW (311 degrees)
Mesa Grande, CA - 26 km (16 miles) NW (323 degrees)
Oceanside, CA - 45 km (28 miles) ENE (66 degrees)
Coordinates 33 deg. 21.9 min. N (33.364N), 116 deg. 56.1 min. W (116.935W)
Depth 10.7 km (6.6 miles)
Quality Good
Location Quality Parameters Nst= 48, Nph= 73, Dmin=7 km, Rmss=0.2 sec, Erho=0.3 km, Erzz=1.1 km, Gp=57.6 degrees
Event ID ci15336913
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