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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 4:32:24 PM (PDT) on Wednesday, May 1, 2013.
The magnitude 1.9 event occurred 7 km (4 miles) W of Palomar Observatory, CA.
The hypocentral depth is 11 km ( 7 miles).




Magnitude 1.9 - local magnitude (Ml)
Time Wednesday, May 1, 2013 at 4:32:24 PM (PDT)
Wednesday, May 1, 2013 at 23:32:24 (UTC)
Distance from Palomar Observatory, CA - 7 km (4 miles) W (279 degrees)
Lake Henshaw, CA - 22 km (13 miles) NW (311 degrees)
Mesa Grande, CA - 26 km (16 miles) NW (322 degrees)
Oceanside, CA - 45 km (28 miles) ENE (65 degrees)
Coordinates 33 deg. 21.9 min. N (33.365N), 116 deg. 56.2 min. W (116.937W)
Depth 11 km (6.8 miles)
Quality Good
Location Quality Parameters Nst= 68, Nph=105, Dmin=7 km, Rmss=0.21 sec, Erho=0.2 km, Erzz=0.7 km, Gp=32.4 degrees
Event ID ci15336177
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SCSN First Motion Mechanism 1



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