Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 4:37:35 AM (PST) on Wednesday, January 21, 2026.
The magnitude 0.5 event occurred 2 km (1 miles) WNW of Concord, CA.
The hypocentral depth is 11 km ( 7 miles).
| Magnitude | 0.5 - duration magnitude (Md) |
| Time | Wednesday, January 21, 2026 at 4:37:35 AM (PST) Wednesday, January 21, 2026 at 12:37:35 (UTC) |
| Distance from |
Concord, CA - 2 km (1 miles) WNW (282 degrees) Pacheco, CA - 3 km (2 miles) ESE (113 degrees) Pleasant Hill, CA - 3 km (2 miles) NE (34 degrees) Waldon, CA - 5 km (3 miles) NNE (15 degrees) Vine Hill, CA - 6 km (4 miles) SE (130 degrees) |
| Coordinates | 37 deg. 58.3 min. N (37.972N), 122 deg. 2.4 min. W (122.040W) |
| Depth | 10.60 km (6.60 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=12, Nph=14, Dmin=6.5 km, Rmss=0.07 sec, Erho=0.38 km, Erzz=0.85 km, Gp=78 degrees |
| Event ID# | nc75299331 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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