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United States · California

M2.3 Earthquake near Black Oaks, California (United States)

UTC time: 2026-09-09 01:08:14 UTC Local time: —

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About this earthquake

On September 9, 2026 at 01:08 UTC, a magnitude M2.3 earthquake occurred near Black Oaks, California (United States). The hypocenter lay relatively close to the surface at around 2 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 194 earthquakes were recorded in the past 24 hours, the strongest reaching M3.1.

Details

ID
1a5ed1ca0f698e6589deace43c2a61591626248b
Magnitude
M2.3
Depth
2.2 km
UTC time
2026-09-09 01:08:14 UTC
Local time
—
Country
United States
State
California
City
Black Oaks
County
Sonoma County
Source
usgs
Coordinates
38.83200, -122.81416
Temperature
28.7°C

Depth profile

Depth profile Depth: 2.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 2.2 km
Shallow
2.2 km
2.2 km — shallower than the regional average (15.3 km)
Regional average: 15.3 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: 16 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 216 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Shasta
    Distance: 291 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Medicine Lake
    Distance: 327 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Mono Lake Volcanic Field
    Distance: 342 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Soda Lakes
    Distance: 348 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
    35.9 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-08

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

09 Sep 2025 – 09 Sep 2026 · M ≥ 2.0 · 2,418 Catalogue entries

Of 2,417 other entries for this area and period, 1,048 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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