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M2.9 Depth: 20.0 km

M2.9 Earthquake near 22 km W of Petrolia, CA (United States)

UTC time: 2025-08-16 16:55:01 UTC Local time: —

About this earthquake

On August 16, 2025 at 16:55 UTC, a magnitude M2.9 earthquake occurred near 22 km W of Petrolia, CA (United States). With a focal depth of about 20 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 event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 230 earthquakes, the strongest at M3.9.

Details

Magnitude
M2.9
Depth
20.0 km
UTC time
2025-08-16 16:55:01 UTC
Local time
—
Country
United States
Source
usgs
Coordinates
40.28517, -124.53967
Temperature
13.4°C

Map

Depth profile

Depth profile Depth: 20 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20 km
Shallow
20 km
20 km — deeper 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: 211 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Shasta
    Distance: 234 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Lassen Volcanic Center
    Distance: 258 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Escanaba Segment
    Distance: 261 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Medicine Lake
    Distance: 291 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Jackson Segment
    Distance: 295 km ·Fissure vent(s) ·Elevation: -3'100 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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