Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 10:57:52 PM (PDT) on Wednesday, April 22, 2026.
The magnitude 0.6 event occurred 3 km (2 miles) ESE of San Ramon, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.6 - duration magnitude (Md) |
| Time | Wednesday, April 22, 2026 at 10:57:52 PM (PDT) Thursday, April 23, 2026 at 5:57:52 (UTC) |
| Distance from |
San Ramon, CA - 3 km (2 miles) ESE (105 degrees) Blackhawk, CA - 6 km (4 miles) SSW (211 degrees) Diablo, CA - 7 km (4 miles) S (170 degrees) Danville, CA - 7 km (5 miles) SE (138 degrees) Dublin, CA - 8 km (5 miles) N (354 degrees) |
| Coordinates | 37 deg. 46.4 min. N (37.773N), 121 deg. 56.7 min. W (121.945W) |
| Depth | 5.29 km (3.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=14, Nph=16, Dmin=1.9 km, Rmss=0.10 sec, Erho=0.29 km, Erzz=0.57 km, Gp=78 degrees |
| Event ID# | nc75349977 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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