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 3:44:21 PM (PDT) on Friday, March 13, 2026.
The magnitude 1.9 event occurred 5 km (3 miles) WSW of Portola Valley, CA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 1.9 - duration magnitude (Md) |
| Time | Friday, March 13, 2026 at 3:44:21 PM (PDT) Friday, March 13, 2026 at 22:44:21 (UTC) |
| Distance from |
Portola Valley, CA - 5 km (3 miles) WSW (243 degrees) Woodside, CA - 8 km (5 miles) SSW (199 degrees) West Menlo Park, CA - 10 km (6 miles) SW (223 degrees) Emerald Lake Hills, CA - 11 km (7 miles) S (186 degrees) Stanford, CA - 12 km (8 miles) WSW (237 degrees) |
| Coordinates | 37 deg. 21.9 min. N (37.366N), 122 deg. 16.9 min. W (122.282W) |
| Depth | 3.06 km (1.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=21, Nph=20, Dmin=5.6 km, Rmss=0.07 sec, Erho=0.23 km, Erzz=0.629999995 km, Gp=102 degrees |
| Event ID# | nc75327057 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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