Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
Seismological Laboratory, University of Nevada, Reno
Version #901736: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 4:14:36 AM (PDT) on Thursday, July 31, 2025.
The magnitude 1.1 event occurred 31 km (19 miles) SE of Janesville, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.1 - local magnitude (Ml) |
| Time | Thursday, July 31, 2025 at 4:14:36 AM (PDT) Thursday, July 31, 2025 at 11:14:36 (UTC) |
| Distance from |
Janesville, CA - 31 km (19 miles) SE (130 degrees) Portola, CA - 39 km (24 miles) NNE (30 degrees) Johnstonville, CA - 42 km (26 miles) SE (136 degrees) Susanville, CA - 48 km (30 miles) SE (134 degrees) Cold Springs, NV - 53 km (33 miles) NNW (335 degrees) |
| Coordinates | 40 deg. 6.9 min. N (40.115N), 120 deg. 14.6 min. W (120.243W) |
| Depth | 8.20 km (5.10 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=11, Nph=14, Dmin=29.5 km, Rmss=0.1337 sec, Erho=0 km, Erzz=2.7 km, Gp=238.63 degrees |
| Event ID# | nn00901736 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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