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 4:14:44 AM (PST) on Saturday, December 27, 2025.
The magnitude 1.8 event occurred 5 km (3 miles) SW of Ridgemark, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Saturday, December 27, 2025 at 4:14:44 AM (PST) Saturday, December 27, 2025 at 12:14:44 (UTC) |
| Distance from |
Ridgemark, CA - 5 km (3 miles) SW (231 degrees) Hollister, CA - 7 km (4 miles) S (190 degrees) San Juan Bautista, CA - 13 km (8 miles) ESE (122 degrees) Prunedale, CA - 23 km (14 miles) E (88 degrees) Salinas, CA - 23 km (15 miles) ENE (62 degrees) |
| Coordinates | 36 deg. 47.0 min. N (36.783N), 121 deg. 24.7 min. W (121.412W) |
| Depth | 7.31 km (4.50 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=17, Nph=17, Dmin=3.8 km, Rmss=0.14 sec, Erho=0.38 km, Erzz=0.889999986 km, Gp=69 degrees |
| Event ID# | nc75287051 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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