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M1.5 Depth: 1.7 km

M1.5 Earthquake near Sonoma County, California (United States)

UTC time: 2026-08-17 22:29:45 UTC Local time: —

About this earthquake

A magnitude M1.5 earthquake was recorded near Sonoma County, California (United States) on August 17, 2026 at 22:29 UTC. The hypocenter lay relatively close to the surface at around 2 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: over the past 24 hours, QuakeMap24 logged 175 earthquakes, the strongest at M4.8.

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Depth profile

Depth profile Depth: 1.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1.7 km
Shallow
1.7 km
1.7 km — shallower than the regional average (15.4 km)
Regional average: 15.4 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: 292 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: 341 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Soda Lakes
    Distance: 347 km ·Maar(s) ·Elevation: 1'251 m ·United States

Historic earthquake map · United States

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Country statistics · United States

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

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