Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 2:10:45 PM (PST) on Tuesday, February 18, 2025.
The magnitude 1.4 event occurred 5 km (3 miles) S of Portola Valley, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Tuesday, February 18, 2025 at 2:10:45 PM (PST) Tuesday, February 18, 2025 at 22:10:45 (UTC) |
| Distance from |
Portola Valley, CA - 5 km (3 miles) S (173 degrees) Los Altos Hills, CA - 9 km (6 miles) WSW (241 degrees) Woodside, CA - 10 km (6 miles) SSE (167 degrees) West Menlo Park, CA - 11 km (7 miles) SSW (192 degrees) Stanford, CA - 11 km (7 miles) SSW (211 degrees) |
| Coordinates | 37 deg. 20.4 min. N (37.340N), 122 deg. 13.7 min. W (122.229W) |
| Depth | 7.74 km (4.80 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=19, Nph=24, Dmin=4.1 km, Rmss=0.07 sec, Erho=0.2 km, Erzz=0.33 km, Gp=64 degrees |
| Event ID# | nc75135857 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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