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United States · California

M0.8 Earthquake near Black Oaks, California (United States)

UTC time: 2026-08-27 01:18:18 UTC Local time: —

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About this earthquake

A magnitude M0.8 earthquake was recorded near Black Oaks, California (United States) on August 27, 2026 at 01:18 UTC. The hypocenter lay relatively close to the surface at around 11 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 190 earthquakes were recorded in the past 24 hours, the strongest reaching M4.6.

Details

ID
4b94500761bfa4be5f324b6132a518b9527c592f
Magnitude
M0.8
Depth
11.3 km
UTC time
2026-08-27 01:18:18 UTC
Local time
—
Country
United States
State
California
City
Black Oaks
County
Sonoma County
Source
usgs
Coordinates
38.82550, -122.83967
Temperature
25.5°C

Depth profile

Depth profile Depth: 11.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11.3 km
Shallow
11.3 km
11.3 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: 17 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 218 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: 328 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Mono Lake Volcanic Field
    Distance: 344 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Soda Lakes
    Distance: 350 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
    35.3 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-11-11

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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