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 1:40:55 AM (PST) on Friday, February 20, 2026.
The magnitude 1.6 event occurred 9 km (6 miles) SE of Ridgemark, CA.
The hypocentral depth is 4 km ( 2 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Friday, February 20, 2026 at 1:40:55 AM (PST) Friday, February 20, 2026 at 9:40:55 (UTC) |
| Distance from |
Ridgemark, CA - 9 km (6 miles) SE (146 degrees) Hollister, CA - 14 km (9 miles) SE (145 degrees) San Juan Bautista, CA - 23 km (14 miles) ESE (119 degrees) Chualar, CA - 27 km (17 miles) NE (44 degrees) Gonzales, CA - 29 km (18 miles) NNE (24 degrees) |
| Coordinates | 36 deg. 44.8 min. N (36.746N), 121 deg. 18.6 min. W (121.310W) |
| Depth | 4.09 km (2.50 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=12, Nph=11, Dmin=3.1 km, Rmss=0.09 sec, Erho=0.34 km, Erzz=0.620000005 km, Gp=61 degrees |
| Event ID# | nc75316257 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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