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Southern California Earthquake Data Center

Recent Earthquakes

Recent Earthquakes in California and Nevada

== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California

Version #2: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.


A micro earthquake occurred at 1:09:47 PM (PDT) on Monday, September 30, 2013.
The magnitude 0.8 event occurred 6 km (4 miles) WSW of Daly City, CA.
The hypocentral depth is 10 km ( 6 miles).




Magnitude 0.8 - duration magnitude (Md)
Time Monday, September 30, 2013 at 1:09:47 PM (PDT)
Monday, September 30, 2013 at 20:09:47 (UTC)
Distance from Daly City, CA - 6 km (4 miles) WSW (253 degrees)
Pacifica, CA - 9 km (6 miles) NNW (339 degrees)
South San Francisco, CA - 11 km (7 miles) WNW (291 degrees)
San Francisco City Hall, CA - 13 km (8 miles) SW (224 degrees)
Coordinates 37 deg. 41.4 min. N (37.690N), 122 deg. 31.3 min. W (122.522W)
Depth 9.6 km (6.0 miles)
Quality Fair
Location Quality Parameters Nst= 10, Nph= 10, Dmin=7 km, Rmss=0.04 sec, Erho=0.6 km, Erzz=0.8 km, Gp=194.4 degrees
Event ID nc72079141
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