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United States · California

M4.2 Earthquake near Sonoma County, California (United States)

UTC time: 2026-01-08 08:00:22 UTC Local time: —

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About this earthquake

A magnitude M4.2 earthquake was recorded near Sonoma County, California (United States) on January 8, 2026 at 08:00 UTC. With a focal depth of about 2 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The data is provided by USGS and cross-checked across seismological networks. United States: 179 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

ID
5d02deaf9aba29d8f9a90864b87b23d5cd145ed9
Magnitude
M4.2
Depth
2.3 km
UTC time
2026-01-08 08:00:22 UTC
Local time
—
Country
United States
State
California
City
Sonoma County
County
Sonoma County
Source
usgs
Coordinates
38.83300, -122.88000
Temperature
0.7°C

Depth profile

Depth profile Depth: 2.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 2.3 km
Shallow
2.3 km
2.3 km — shallower 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: 18 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 219 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Shasta
    Distance: 292 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Medicine Lake
    Distance: 329 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Mono Lake Volcanic Field
    Distance: 348 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Soda Lakes
    Distance: 353 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
    36.5 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-14

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

14 Sep 2025 – 14 Sep 2026 · M ≥ 3.0 · 241 Catalogue entries

Of 240 other entries for this area and period, 22 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · United States

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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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