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 10:30:40 PM (PDT) on Saturday, August 8, 2026.
The magnitude 1.3 event occurred 0 km (0 miles) SW of Blackhawk, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 1.3 - duration magnitude (Md) |
| Time | Saturday, August 8, 2026 at 10:30:40 PM (PDT) Sunday, August 9, 2026 at 5:30:40 (UTC) |
| Distance from |
Blackhawk, CA - 0 km (0 miles) SW (218 degrees) Diablo, CA - 5 km (3 miles) ESE (113 degrees) San Ramon, CA - 7 km (5 miles) NE (54 degrees) Danville, CA - 8 km (5 miles) E (92 degrees) Alamo, CA - 11 km (7 miles) ESE (108 degrees) |
| Coordinates | 37 deg. 49.1 min. N (37.819N), 121 deg. 54.6 min. W (121.910W) |
| Depth | 8.70 km (5.40 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=11, Nph=11, Dmin=4.0 km, Rmss=0.13 sec, Erho=0.46 km, Erzz=0.899999976 km, Gp=79 degrees |
| Event ID# | nc75414477 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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