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 6:34:45 PM (PDT) on Monday, May 4, 2026.
The magnitude 1.7 event occurred 21 km (13 miles) NNE (23 degrees) of Upper Lake, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Monday, May 4, 2026 at 6:34:45 PM (PDT) Tuesday, May 5, 2026 at 1:34:45 (UTC) |
| Distance from |
Upper Lake, CA - 21 km (13 miles) NNE (23 degrees) Nice, CA - 24 km (15 miles) N (7 degrees) North Lakeport, CA - 29 km (18 miles) NNE (16 degrees) Lakeport, CA - 34 km (21 miles) NNE (15 degrees) Redwood Valley, CA - 35 km (21 miles) ENE (76 degrees) |
| Coordinates | 39 deg. 20.5 min. N (39.341N), 122 deg. 48.9 min. W (122.814W) |
| Depth | 7.50 km (4.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=7.7 km, Rmss=0.12 sec, Erho=0.49 km, Erzz=1.36000001 km, Gp=82 degrees |
| Event ID# | nc75357117 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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