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 7:02:49 PM (PDT) on Friday, August 1, 2025.
The magnitude 2.2 event occurred 4 km (2 miles) E (81 degrees) of Arcata, CA.
The hypocentral depth is 15 km (10 miles).
| Magnitude | 2.2 - duration magnitude (Md) |
| Time | Friday, August 1, 2025 at 7:02:49 PM (PDT) Saturday, August 2, 2025 at 2:02:49 (UTC) |
| Distance from |
Arcata, CA - 4 km (2 miles) E (81 degrees) Bayside, CA - 4 km (2 miles) NNE (33 degrees) Blue Lake, CA - 5 km (3 miles) WSW (255 degrees) McKinleyville, CA - 10 km (6 miles) SSE (148 degrees) Myrtletown, CA - 12 km (7 miles) NE (40 degrees) |
| Coordinates | 40 deg. 52.3 min. N (40.872N), 124 deg. 2.3 min. W (124.039W) |
| Depth | 15.25 km (9.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=18, Nph=16, Dmin=6.1 km, Rmss=0.14 sec, Erho=0.71 km, Erzz=0.430000007 km, Gp=179 degrees |
| Event ID# | nc75218127 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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