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 3:56:45 AM (PST) on Saturday, February 21, 2026.
The magnitude 1.8 event occurred 1 km (0 miles) E (95 degrees) of Hayward, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Saturday, February 21, 2026 at 3:56:45 AM (PST) Saturday, February 21, 2026 at 11:56:45 (UTC) |
| Distance from |
Hayward, CA - 1 km (0 miles) E (95 degrees) Fairview, CA - 4 km (3 miles) SSW (209 degrees) Cherryland, CA - 5 km (3 miles) SE (144 degrees) San Lorenzo, CA - 6 km (4 miles) SE (132 degrees) Castro Valley, CA - 6 km (4 miles) SSE (166 degrees) |
| Coordinates | 37 deg. 38.6 min. N (37.643N), 122 deg. 4.2 min. W (122.071W) |
| Depth | 2.22 km (1.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=24, Nph=24, Dmin=10.0 km, Rmss=0.24 sec, Erho=0.43 km, Erzz=2.68000007 km, Gp=54 degrees |
| Event ID# | nc75316707 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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