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== 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 10:00:32 PM (PDT) on Monday, July 9, 2018.
The magnitude 1.1 event occurred 17 km (10 miles) W of Johannesburg, CA.
The hypocentral depth is 4 km ( 3 miles).



Magnitude 1.1 - local magnitude (Ml)
Time Monday, July 9, 2018 at 10:00:32 PM (PDT)
Tuesday, July 10, 2018 at 5:00:32 (UTC)
Distance from Johannesburg, CA - 17 km (10 miles) W (271 degrees)
Inyokern, CA - 30 km (19 miles) S (181 degrees)
Ridgecrest, CA - 30 km (19 miles) SSW (206 degrees)
California City, CA - 31 km (20 miles) NNE (29 degrees)
Boron, CA - 44 km (28 miles) NNW (340 degrees)
Coordinates 35 deg. 22.5 min. N (35.374N), 117 deg. 49.2 min. W (117.820W)
Depth 4.3 km (2.7 miles)
Quality Fair
Location Quality Parameters Nst=30, Nph=50, Dmin=12.1 km, Rmss=0.16 sec, Erho=0.18 km, Erzz=0.68 km, Gp=63 degrees
Event ID# ci37276954
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