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 1:04:50 AM (PST) on Tuesday, February 18, 2025.
The magnitude 2.5 event occurred 5 km (3 miles) S of Portola Valley, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 2.5 - local magnitude (Ml) |
| Time | Tuesday, February 18, 2025 at 1:04:50 AM (PST) Tuesday, February 18, 2025 at 9:04:50 (UTC) |
| Distance from |
Portola Valley, CA - 5 km (3 miles) S (178 degrees) Woodside, CA - 10 km (6 miles) S (170 degrees) Los Altos Hills, CA - 10 km (6 miles) WSW (242 degrees) West Menlo Park, CA - 11 km (7 miles) SSW (194 degrees) Stanford, CA - 11 km (7 miles) SSW (212 degrees) |
| Coordinates | 37 deg. 20.3 min. N (37.339N), 122 deg. 14.0 min. W (122.233W) |
| Depth | 8.62 km (5.40 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=186, Nph=196, Dmin=5.1 km, Rmss=0.50 sec, Erho=1.23 km, Erzz=1.864 km, Gp=138 degrees |
| Event ID# | nc75135597 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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