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 2:15:51 PM (PST) on Monday, December 29, 2025.
The magnitude 1.7 event occurred 5 km (3 miles) WSW of Ridgemark, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Monday, December 29, 2025 at 2:15:51 PM (PST) Monday, December 29, 2025 at 22:15:51 (UTC) |
| Distance from |
Ridgemark, CA - 5 km (3 miles) WSW (240 degrees) Hollister, CA - 6 km (4 miles) S (191 degrees) San Juan Bautista, CA - 13 km (8 miles) ESE (118 degrees) Prunedale, CA - 23 km (14 miles) E (86 degrees) Aromas, CA - 23 km (14 miles) ESE (118 degrees) |
| Coordinates | 36 deg. 47.5 min. N (36.791N), 121 deg. 24.7 min. W (121.412W) |
| Depth | 5.63 km (3.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=12, Nph=12, Dmin=4.3 km, Rmss=0.08 sec, Erho=0.36 km, Erzz=0.699999988 km, Gp=108 degrees |
| Event ID# | nc75288251 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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