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M1.0 Depth: 8.5 km

M1.0 Earthquake near Sonoma County, California (United States)

UTC time: 2026-08-01 17:14:48 UTC Local time: —

About this earthquake

A magnitude M1.0 earthquake was recorded near Sonoma County, California (United States) on August 1, 2026 at 17:14 UTC. With a focal depth of about 8 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. 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: 186 earthquakes were recorded in the past 24 hours, the strongest reaching M3.8.

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Depth profile

Depth profile Depth: 8.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8.5 km
Shallow
8.5 km
8.5 km — shallower than the regional average (15.5 km)
Regional average: 15.5 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: 49 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 242 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Shasta
    Distance: 323 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Mono Lake Volcanic Field
    Distance: 327 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Mono-Inyo Craters
    Distance: 332 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 337 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States

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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