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 5:31:47 AM (PDT) on Tuesday, September 9, 2025.
The magnitude 2.7 event occurred 4 km (2 miles) SE of Aromas, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 2.7 - duration magnitude (Md)
Time Tuesday, September 9, 2025 at 5:31:47 AM (PDT)
Tuesday, September 9, 2025 at 12:31:47 (UTC)
Distance from Aromas, CA - 4 km (2 miles) SE (128 degrees)
San Juan Bautista, CA - 7 km (4 miles) WNW (291 degrees)
Las Lomas, CA - 11 km (7 miles) E (89 degrees)
Prunedale, CA - 12 km (7 miles) NNE (28 degrees)
Elkhorn, CA - 13 km (8 miles) ENE (68 degrees)
Coordinates 36 deg. 52.1 min. N (36.868N), 121 deg. 36.6 min. W (121.610W)
Depth 5.18 km (3.20 miles)
Quality Good
Location Quality Parameters Nst=70, Nph=59, Dmin=2.5 km, Rmss=0.17 sec, Erho=0.2 km, Erzz=0.409999996 km, Gp=42 degrees
Event ID# nc75235462
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For more information, see https://earthquake.usgs.gov

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