2025-08-14 12:48:04 UPDATED: (M4.0) Northern California 38.8 -122.8 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.0 Earthquake - Northern California

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 14 Aug 2025 12:48:05 Time near the Epicenter (1): 14 Aug 2025 05:48:05 Time in your area (1): 14 Aug 2025 04:48:05
Location	38.802N 122.815W
Depth	3 km
Distances	8.3 km (5.2 mi) WSW of Cobb, California 21.8 km (13.5 mi) NNE of Healdsburg, California 23.8 km (14.8 mi) SW of Clearlake, California 28.3 km (17.6 mi) N of Windsor, California 117.5 km (72.8 mi) WNW of Sacramento, California
Location Uncertainty	Horizontal: 0.1 km; Vertical 0.2 km
Parameters	Nph = 90; Dmin = 1.4 km; Rmss = 0.11 seconds; Gp = 20° Version = 3
Event ID	nc 75223077 ***This event has been revised.

(1) Nominal Standard Time; local and daylight savings time zone may differ.
For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
CISN Northern California Management Center
U.S. Geological Survey
Berkeley Seismological Laboratory
http://www.cisn.org/ncmc.html

Disclaimer

This email was sent to list-quake@xxxxxxxxxxx

You requested mail for events between -90.0/90.0 latitude and 180.0/-180.0 longitude (Default World)
for M3.5 between 08:00 and 20:00 and M4.0 other times.

To change your parameters, go to: https://earthquake.usgs.gov/ens/
To unsubscribe, send a one-line reply to this message with: STOP list-quake@xxxxxxxxxxx