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M0.4 Depth: 1.2 km

M0.4 Earthquake near 6 km WNW of Cobb, CA (United States)

UTC time: 2025-08-23 13:38:55 UTC Local time: —

About this earthquake

A magnitude M0.4 earthquake was recorded near 6 km WNW of Cobb, CA (United States) on August 23, 2025 at 13:38 UTC. With a focal depth of about 1 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 198 earthquakes, the strongest at M3.7.

Details

Magnitude
M0.4
Depth
1.2 km
UTC time
2025-08-23 13:38:55 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
38.82300, -122.78683
Temperature
26.4°C

Map

Depth profile

Depth profile Depth: 1.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1.2 km
Shallow
1.2 km
1.2 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: 215 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: 340 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Soda Lakes
    Distance: 346 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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