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 11:39:04 PM (PDT) on Monday, July 27, 2026.
The magnitude 1.1 event occurred 3 km (2 miles) NE (43 degrees) of The Geysers, CA.
The hypocentral depth is 1 km (0.40 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Monday, July 27, 2026 at 11:39:04 PM (PDT) Tuesday, July 28, 2026 at 6:39:04 (UTC) |
| Distance from |
The Geysers, CA - 3 km (2 miles) NE (43 degrees) Cobb, CA - 3 km (2 miles) SSW (195 degrees) Middletown, CA - 11 km (7 miles) WNW (297 degrees) Hidden Valley Lake, CA - 15 km (9 miles) W (266 degrees) Lower Lake, CA - 16 km (10 miles) SW (220 degrees) |
| Coordinates | 38 deg. 47.9 min. N (38.799N), 122 deg. 43.9 min. W (122.731W) |
| Depth | 0.62 km (0.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=16, Nph=16, Dmin=1.8 km, Rmss=0.05 sec, Erho=0.26 km, Erzz=0.560000002 km, Gp=105 degrees |
| Event ID# | nc75407162 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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