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 3:42:47 PM (PDT) on Saturday, August 16, 2025.
The magnitude 1.6 event occurred 16 km (10 miles) SSE of Ridgemark, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Saturday, August 16, 2025 at 3:42:47 PM (PDT) Saturday, August 16, 2025 at 22:42:47 (UTC) |
| Distance from |
Ridgemark, CA - 16 km (10 miles) SSE (168 degrees) Chualar, CA - 20 km (13 miles) NE (55 degrees) Hollister, CA - 20 km (13 miles) SSE (162 degrees) Gonzales, CA - 21 km (13 miles) NNE (29 degrees) San Juan Bautista, CA - 27 km (16 miles) SE (136 degrees) |
| Coordinates | 36 deg. 40.5 min. N (36.674N), 121 deg. 19.8 min. W (121.330W) |
| Depth | 6.50 km (4.00 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=17, Nph=17, Dmin=3.9 km, Rmss=0.14 sec, Erho=0.44 km, Erzz=1 km, Gp=85 degrees |
| Event ID# | nc75224767 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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