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M2.1 Depth: 4.1 km

M2.1 Earthquake near 8 km ENE of Vallejo, CA (United States)

UTC time: 2025-10-21 19:34:37 UTC Local time: —

About this earthquake

On October 21, 2025 at 19:34 UTC, a magnitude M2.1 earthquake occurred near 8 km ENE of Vallejo, CA (United States). The hypocenter lay relatively close to the surface at around 4 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 189 earthquakes, the strongest at M4.7.

Details

Magnitude
M2.1
Depth
4.1 km
UTC time
2025-10-21 19:34:37 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
38.12833, -122.14117
Temperature
26.1°C

Map

Depth profile

Depth profile Depth: 4.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 4.1 km
Shallow
4.1 km
4.1 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: 108 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 268 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Mono Lake Volcanic Field
    Distance: 273 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Mono-Inyo Craters
    Distance: 275 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 278 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Soda Lakes
    Distance: 323 km ·Maar(s) ·Elevation: 1'251 m ·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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