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

A micro earthquake occurred at 9:33:14 PM (PDT) on Monday, April 20, 2026.
The magnitude 1.3 event occurred 13 km (8 miles) W of Johannesburg, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.3 - local magnitude (Ml)
Time Monday, April 20, 2026 at 9:33:14 PM (PDT)
Tuesday, April 21, 2026 at 4:33:14 (UTC)
Distance from Johannesburg, CA - 13 km (8 miles) W (268 degrees)
Ridgecrest, CA - 29 km (18 miles) SSW (198 degrees)
Inyokern, CA - 31 km (19 miles) S (174 degrees)
California City, CA - 33 km (21 miles) NE (35 degrees)
Boron, CA - 43 km (27 miles) NNW (345 degrees)
Coordinates 35 deg. 22.2 min. N (35.369N), 117 deg. 46.5 min. W (117.775W)
Depth 5.69 km (3.50 miles)
Quality Fair
Location Quality Parameters Nst=42, Nph=72, Dmin=13.0 km, Rmss=0.15 sec, Erho=0.16 km, Erzz=0.59 km, Gp=43 degrees
Event ID# ci41446120
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