Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:36:59 AM (PDT) on Tuesday, April 21, 2026.
The magnitude 2.4 event occurred 13 km (8 miles) NNE (22 degrees) of Portola, CA.
The hypocentral depth is 10 km ( 6 miles).
| Magnitude | 2.4 - duration magnitude (Md) |
| Time | Tuesday, April 21, 2026 at 7:36:59 AM (PDT) Tuesday, April 21, 2026 at 14:36:59 (UTC) |
| Distance from |
Portola, CA - 13 km (8 miles) NNE (22 degrees) East Quincy, CA - 42 km (26 miles) E (92 degrees) Janesville, CA - 43 km (27 miles) SSE (167 degrees) Quincy, CA - 46 km (28 miles) E (92 degrees) Cold Springs, NV - 46 km (28 miles) NW (306 degrees) |
| Coordinates | 39 deg. 55.2 min. N (39.919N), 120 deg. 24.7 min. W (120.412W) |
| Depth | 9.59 km (6.00 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=29, Nph=32, Dmin=7.3 km, Rmss=0.13 sec, Erho=0.25 km, Erzz=0.43 km, Gp=59 degrees |
| Event ID# | nc75349097 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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