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 10:24:49 AM (PDT) on Saturday, July 4, 2026.
The magnitude 1.5 event occurred 8 km (5 miles) ENE (57 degrees) of Blackhawk, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Saturday, July 4, 2026 at 10:24:49 AM (PDT) Saturday, July 4, 2026 at 17:24:49 (UTC) |
| Distance from |
Blackhawk, CA - 8 km (5 miles) ENE (57 degrees) Diablo, CA - 12 km (7 miles) ENE (75 degrees) Brentwood, CA - 12 km (7 miles) SW (231 degrees) Clayton, CA - 13 km (8 miles) SE (134 degrees) Danville, CA - 16 km (10 miles) ENE (74 degrees) |
| Coordinates | 37 deg. 51.7 min. N (37.861N), 121 deg. 49.8 min. W (121.829W) |
| Depth | 7.56 km (4.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=13, Nph=13, Dmin=6.1 km, Rmss=0.06 sec, Erho=0.28 km, Erzz=0.970000029 km, Gp=101 degrees |
| Event ID# | nc75389381 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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