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United States · California

M0.0 Earthquake near Sonoma County, California (United States)

UTC time: 2026-10-31 18:47:22 UTC Local time: —

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About this earthquake

On October 31, 2026 at 18:47 UTC, a magnitude M0.0 earthquake occurred near Sonoma County, California (United States). The hypocenter lay relatively close to the surface at around 37 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by NCEDC. United States: 182 earthquakes were recorded in the past 24 hours, the strongest reaching M3.3.

Details

ID
361eec19fb5144142e36c1c5ce517f93af99c186
Magnitude
M0.0
Depth
37.4 km
UTC time
2026-10-31 18:47:22 UTC
Local time
—
Country
United States
State
California
City
Sonoma County
County
Sonoma County
Source
ncedc
Coordinates
38.84783, -123.03516
Temperature
9.5°C

Depth profile

Depth profile Depth: 37.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 37.4 km
Shallow
37.4 km
37.4 km — deeper than the regional average (15.2 km)
Regional average: 15.2 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Clear Lake Volcanic Field
    Distance: 27 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 225 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Shasta
    Distance: 294 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Medicine Lake
    Distance: 332 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Mono Lake Volcanic Field
    Distance: 361 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Soda Lakes
    Distance: 366 km ·Maar(s) ·Elevation: 1'251 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Charles M. Schulz Sonoma County AirportUnited States · STS · KSTS
    42.3 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-31

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

California

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 2,447 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · United States

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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