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


A micro earthquake occurred at 7:45:12 AM (PDT) on Saturday, May 4, 2013.
The magnitude 1.0 event occurred 27 km (17 miles) E (82 degrees) of Tennant, CA.
The hypocentral depth is 1 km ( 1 mile).




Magnitude 1.0 - duration magnitude (Md)
Time Saturday, May 4, 2013 at 7:45:12 AM (PDT)
Saturday, May 4, 2013 at 14:45:12 (UTC)
Distance from Tennant, CA - 27 km (17 miles) E (82 degrees)
Tulelake, CA - 39 km (24 miles) SSW (195 degrees)
Merrill, OR - 45 km (28 miles) S (179 degrees)
Klamath Falls, OR - 69 km (43 miles) SSE (167 degrees)
Coordinates 41 deg. 37.0 min. N (41.616N), 121 deg. 35.7 min. W (121.594W)
Depth 1 km (0.6 miles)
Quality Fair
Location Quality Parameters Nst= 10, Nph= 10, Dmin=2 km, Rmss=0.2 sec, Erho=0.9 km, Erzz=1.3 km, Gp=190.8 degrees
Event ID nc71988051
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