Earthquake near Santa Rosa, CA

Yes. A magnitude 2.0 earthquake was recorded 39 km (24 mi) N of Santa Rosa, CA, at 8:20 am PDT on 12 October 2026 (15:20 UTC), 1.6 km deep. No felt reports to USGS yet. The magnitude and location are an automatic first estimate and may change.

USGS: 1 km N of The Geysers, CA

38 km (24 mi) N of Santa Rosa, CA · 116 km (72 mi) NNW of San Francisco, CA

8:20 am PDT, Oct 12, 2026 · 2026-10-12 15:20 UTC · 1.6 km deep · released about 32 lb of TNT

Every earthquake near Santa Rosa Felt it? Tell USGS Check my area

Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.

When: 8:20 am PDT on 12 October 2026 (2026-10-12 15:20 UTC)
Where: 39 km (24 mi) N of Santa Rosa, CA · earthquakes near Santa Rosa
Magnitude: M 2.0 (md)
Depth: 1.6 km below the surface
Felt: no reports yet
Nearest: Sonoma County, 33 km SSW
Nearest mapped fault: Maacama fault, 11 km from its surface trace — near is not the same as on
Status: Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS 18 hours ago · we first saw it 19 hours ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 16 km (10 mi) from the epicentre. In Santa Rosa, 39 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Cobb 5 km, intensity II · Middletown 13 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 32 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 470,000× the energy of this one
Magna, Utah 2020 M 5.7 330,000× the energy of this one
Around the size people start to feel M 3.0 30× the energy of this one
This earthquake M 2.0 about 32 lb of TNT

Energy from the Gutenberg–Richter relation (log₁₀E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km since 2016 was M 5.0 on 2016-12-14 — about 31,000 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

5.2 6 km ESE of Talmage, California · 47 km NW of this epicentre Jun 6, 1962

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Map loads when it scrolls into view

Nearby places

Place	Distance	Direction from the epicentre
Sonoma County, CA	33 km (20 mi)	SSW	earthquakes near Sonoma County
Lake County, CA	36 km (22 mi)	N	earthquakes near Lake County
Napa County, CA	49 km (30 mi)	SE	earthquakes near Napa County
Colusa County, CA	62 km (39 mi)	NE	earthquakes near Colusa County
Yolo County, CA	75 km (47 mi)	E	earthquakes near Yolo County
Marin County, CA	82 km (51 mi)	S	earthquakes near Marin County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

21 earthquakes have been recorded within 50 km since this one.

0.7 10 km NW of The Geysers, CA 09:26 UTC
0.7 8 km W of Cobb, CA 09:12 UTC
1.4 6 km WNW of Cobb, CA 07:53 UTC
1.0 1 km NW of The Geysers, CA 07:44 UTC
0.7 5 km NW of The Geysers, CA 05:01 UTC
0.2 5 km WNW of Cobb, CA 04:03 UTC
1.3 5 km WNW of Cobb, CA 02:20 UTC
1.1 7 km NW of The Geysers, CA 00:26 UTC
0.3 10 km WNW of Cobb, CA 00:21 UTC
0.2 5 km WNW of Cobb, CA 00:08 UTC
1.3 5 km WNW of Cobb, CA 00:02 UTC
0.5 6 km W of Cobb, CA 22:11 UTC
0.9 4 km NNW of The Geysers, CA 19:47 UTC
1.3 8 km W of Cobb, CA 19:47 UTC
0.7 7 km NW of The Geysers, CA 18:33 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 10:01 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

The official USGS event page — the source of record for every value above
Did you feel it? Report it to USGS — reports go to USGS, not to us
ShakeMap for this event, when USGS has produced one

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.