Earthquakes in Sonoma County, California
Quiet QuakeIndex 19 / 100
16 quakes of M1.5 or larger in the last 7 days within 50 km. Normal for here is 12 to 21 in a week.
Compared against Sonoma County, California's own 10 years · USGS catalogue · updated
The last 30 days
Live · last 7 days
Latest earthquakes within 50 km
12 in the latest snapshot we hold; the full 7 days load from USGS as this page opens.
- 0.8 9 km NW of The Geysers, CA
- 0.3 2 km WNW of The Geysers, CA
- 1.5 8 km NW of The Geysers, CA
- 1.2 9 km WNW of Cobb, CA
- 1.4 3 km W of Cobb, CA
- 1.1 5 km WNW of The Geysers, CA
- 1.2 5 km WNW of The Geysers, CA
- 2.1 5 km WNW of The Geysers, CA
- 0.7 2 km NNW of The Geysers, CA
- 1.1 5 km WNW of Cobb, CA
- 0.9 4 km NW of The Geysers, CA
- 0.8 6 km NW of The Geysers, CA
Source USGS · snapshot of
Where this is
Map loads when it scrolls into view
Centre 38.525, -122.926 — the Census internal point, from the US Census Bureau Gazetteer (2024). Activity is measured within 50 km of it.
Largest on record nearby
| Magnitude | When | Where |
|---|---|---|
| M 5.0 | 10 km W of Cobb, California | |
| M 4.7 | 4 km NW of Cobb, CA | |
| M 4.5 | 7 km NW of The Geysers, CA | |
| M 4.5 | 2km NW of The Geysers, CA | |
| M 4.4 | 7km WNW of Cobb, CA | |
| M 4.4 | 2 km NW of The Geysers, CA | |
| M 4.4 | 3km N of Santa Rosa, CA | |
| M 4.3 | 4km N of Santa Rosa, CA |
From the QuakeIndex catalogue, built from the USGS FDSN event service · within 50 km of the centre above.
After an earthquake here
- Report what you felt to USGS — reports go to USGS, not to us, and they are what produces the intensity maps
- What to do during and after an earthquake
- Check the roads — Nevada Explorer, for Reno, Tahoe and the Sierra passes
- QuakeIndex does not issue warnings. For early warning, ShakeAlert reaches phones through Wireless Emergency Alerts and the MyShake app