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 8:04:14 PM (PST) on Sunday, December 21, 2025.
The magnitude 0.8 event occurred 4 km (2 miles) SE of Aromas, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 0.8 - duration magnitude (Md) |
| Time | Sunday, December 21, 2025 at 8:04:14 PM (PST) Monday, December 22, 2025 at 4:04:14 (UTC) |
| Distance from |
Aromas, CA - 4 km (2 miles) SE (139 degrees) San Juan Bautista, CA - 7 km (4 miles) WNW (286 degrees) Las Lomas, CA - 11 km (7 miles) E (92 degrees) Prunedale, CA - 11 km (7 miles) NNE (27 degrees) Elkhorn, CA - 12 km (7 miles) ENE (69 degrees) |
| Coordinates | 36 deg. 51.7 min. N (36.862N), 121 deg. 36.9 min. W (121.615W) |
| Depth | 2.16 km (1.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=3.2 km, Rmss=0.17 sec, Erho=0.63 km, Erzz=1.57000005 km, Gp=109 degrees |
| Event ID# | nc75284556 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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