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 3:23:36 AM (PST) on Saturday, December 27, 2025.
The magnitude 1.5 event occurred 0 km (0 miles) W of Ridgemark, CA.
The hypocentral depth is 7 km ( 5 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Saturday, December 27, 2025 at 3:23:36 AM (PST) Saturday, December 27, 2025 at 11:23:36 (UTC) |
| Distance from |
Ridgemark, CA - 0 km (0 miles) W (260 degrees) Hollister, CA - 5 km (3 miles) SSE (148 degrees) San Juan Bautista, CA - 15 km (10 miles) ESE (104 degrees) Aromas, CA - 26 km (16 miles) ESE (109 degrees) Prunedale, CA - 27 km (17 miles) E (81 degrees) |
| Coordinates | 36 deg. 48.7 min. N (36.812N), 121 deg. 22.2 min. W (121.370W) |
| Depth | 7.48 km (4.60 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=15, Nph=14, Dmin=6.7 km, Rmss=0.09 sec, Erho=0.33 km, Erzz=0.870000005 km, Gp=74 degrees |
| Event ID# | nc75287031 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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