Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #913487: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 4:31:24 AM (PDT) on Sunday, March 29, 2026.
The magnitude 2.2 event occurred 29 km (18 miles) SW of Portola, CA.
The hypocentral depth is -0.31 km (-0.20 miles).
| Magnitude | 2.2 - local magnitude (Ml) |
| Time | Sunday, March 29, 2026 at 4:31:24 AM (PDT) Sunday, March 29, 2026 at 11:31:24 (UTC) |
| Distance from |
Portola, CA - 29 km (18 miles) SW (226 degrees) East Quincy, CA - 37 km (23 miles) SSE (155 degrees) Quincy, CA - 39 km (25 miles) SSE (150 degrees) Nevada City, CA - 49 km (30 miles) NNE (32 degrees) Challenge-Brownsville, CA - 51 km (31 miles) ENE (68 degrees) |
| Coordinates | 39 deg. 37.8 min. N (39.630N), 120 deg. 42.8 min. W (120.714W) |
| Depth | -0.31 km (-0.20 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=15, Nph=20, Dmin=3.0 km, Rmss=0.08 sec, Erho=1.05 km, Erzz=7.76999998 km, Gp=239 degrees |
| Event ID# | nc75334852 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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