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 6:00:37 PM (PST) on Sunday, December 21, 2025.
The magnitude 1.5 event occurred 10 km (6 miles) WSW of Morro Bay, CA.
The hypocentral depth is -0.32 km (-0.20 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Sunday, December 21, 2025 at 6:00:37 PM (PST) Monday, December 22, 2025 at 2:00:37 (UTC) |
| Distance from |
Morro Bay, CA - 10 km (6 miles) WSW (240 degrees) Los Osos, CA - 11 km (7 miles) W (275 degrees) Cayucos, CA - 15 km (9 miles) SSW (201 degrees) Avila Beach, CA - 25 km (16 miles) NW (308 degrees) San Luis Obispo, CA - 27 km (17 miles) W (279 degrees) |
| Coordinates | 35 deg. 19.2 min. N (35.320N), 120 deg. 56.9 min. W (120.949W) |
| Depth | -0.32 km (-0.20 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=8.7 km, Rmss=0.27 sec, Erho=1.42 km, Erzz=7.09000015 km, Gp=198 degrees |
| Event ID# | nc75284496 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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