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 4:07:07 PM (PDT) on Tuesday, August 18, 2026.
The magnitude 1.4 event occurred 9 km (6 miles) ESE of Redwood Valley, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Tuesday, August 18, 2026 at 4:07:07 PM (PDT) Tuesday, August 18, 2026 at 23:07:07 (UTC) |
| Distance from |
Redwood Valley, CA - 9 km (6 miles) ESE (118 degrees) Talmage, CA - 11 km (7 miles) NNE (24 degrees) Ukiah, CA - 12 km (7 miles) NE (43 degrees) Upper Lake, CA - 19 km (12 miles) WNW (292 degrees) North Lakeport, CA - 24 km (15 miles) NW (311 degrees) |
| Coordinates | 39 deg. 13.6 min. N (39.227N), 123 deg. 6.8 min. W (123.113W) |
| Depth | 5.61 km (3.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=11.2 km, Rmss=0.05 sec, Erho=0.37 km, Erzz=1.5 km, Gp=117 degrees |
| Event ID# | nc75420897 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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