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 6:29:44 AM (PDT) on Friday, August 21, 2026.
The magnitude 1.6 event occurred 28 km (17 miles) SW of Greenfield, CA.
The hypocentral depth is 4 km ( 3 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Friday, August 21, 2026 at 6:29:44 AM (PDT) Friday, August 21, 2026 at 13:29:44 (UTC) |
| Distance from |
Greenfield, CA - 28 km (17 miles) SW (215 degrees) King City, CA - 28 km (18 miles) WSW (249 degrees) Soledad, CA - 35 km (22 miles) SSW (194 degrees) Gonzales, CA - 43 km (27 miles) S (177 degrees) Chualar, CA - 51 km (32 miles) S (170 degrees) |
| Coordinates | 36 deg. 7.1 min. N (36.118N), 121 deg. 25.2 min. W (121.420W) |
| Depth | 4.42 km (2.70 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=5, Nph=5, Dmin=47.3 km, Rmss=0.02 sec, Erho=1.83 km, Erzz=8.40999985 km, Gp=206 degrees |
| Event ID# | nc75422397 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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