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 8:13:38 PM (PDT) on Monday, April 27, 2026.
The magnitude 2.3 event occurred 13 km (8 miles) NNE (21 degrees) of Portola, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 2.3 - duration magnitude (Md) |
| Time | Monday, April 27, 2026 at 8:13:38 PM (PDT) Tuesday, April 28, 2026 at 3:13:38 (UTC) |
| Distance from |
Portola, CA - 13 km (8 miles) NNE (21 degrees) East Quincy, CA - 41 km (26 miles) E (92 degrees) Janesville, CA - 43 km (27 miles) SSE (167 degrees) Quincy, CA - 45 km (28 miles) E (92 degrees) Cold Springs, NV - 46 km (29 miles) NW (306 degrees) |
| Coordinates | 39 deg. 55.3 min. N (39.922N), 120 deg. 24.9 min. W (120.415W) |
| Depth | 9.13 km (5.70 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=21, Nph=24, Dmin=7.7 km, Rmss=0.12 sec, Erho=0.23 km, Erzz=0.53 km, Gp=59 degrees |
| Event ID# | nc75352952 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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