Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:11:19 PM (PDT) on Monday, July 17, 2023.
The magnitude 0.5 event occurred 2 km (1 miles) E (99 degrees) of Pacifica, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 0.5 - duration magnitude (Md) |
| Time | Monday, July 17, 2023 at 7:11:19 PM (PDT) Tuesday, July 18, 2023 at 2:11:19 (UTC) |
| Distance from |
Pacifica, CA - 2 km (1 miles) E (99 degrees) San Bruno, CA - 5 km (3 miles) WSW (247 degrees) South San Francisco, CA - 7 km (4 miles) SW (227 degrees) Millbrae, CA - 7 km (4 miles) W (281 degrees) Colma, CA - 7 km (5 miles) S (185 degrees) |
| Coordinates | 37 deg. 36.7 min. N (37.611N), 122 deg. 28.0 min. W (122.467W) |
| Depth | 8.03 km (5.0 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=9, Nph=13, Dmin=3.0 km, Rmss=0.06 sec, Erho=0.52 km, Erzz=0.75 km, Gp=118 degrees |
| Event ID# | nc73914151 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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