Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 3:13:36 PM (PDT) on Friday, April 3, 2026.
The magnitude 1.9 event occurred 1 km (1 miles) SE of Boulder Creek, CA.
The hypocentral depth is 9 km ( 6 miles).


Magnitude 1.9 - duration magnitude (Md)
Time Friday, April 3, 2026 at 3:13:36 PM (PDT)
Friday, April 3, 2026 at 22:13:36 (UTC)
Distance from Boulder Creek, CA - 1 km (1 miles) SE (126 degrees)
Brookdale, CA - 2 km (1 miles) NNW (338 degrees)
Ben Lomond, CA - 4 km (3 miles) NW (326 degrees)
Lompico, CA - 6 km (4 miles) WNW (288 degrees)
Felton, CA - 9 km (5 miles) NNW (335 degrees)
Coordinates 37 deg. 7.3 min. N (37.121N), 122 deg. 6.8 min. W (122.114W)
Depth 8.92 km (5.50 miles)
Quality Excellent
Location Quality Parameters Nst=12, Nph=12, Dmin=3.7 km, Rmss=0.08 sec, Erho=0.33 km, Erzz=0.790000021 km, Gp=61 degrees
Event ID# nc75338502
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