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M3.1 Earthquake near 63 km WNW of Petrolia, CA (United States)

UTC time: 2025-04-27 21:18:20 UTC Local time: —

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About this earthquake

On April 27, 2025 at 21:18 UTC, a magnitude M3.1 earthquake occurred near 63 km WNW of Petrolia, CA (United States). With a focal depth of about 1 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by USGS. United States: 169 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

ID
e8d13c78bf1678388399aa204329086fafc07d9d
Magnitude
M3.1
Depth
1.1 km
UTC time
2025-04-27 21:18:20 UTC
Local time
—
Country
United States
Source
usgs
Coordinates
40.44283, -125.00684
Temperature
10.8°C

Depth profile

Depth profile Depth: 1.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1.1 km
Shallow
1.1 km
1.1 km — shallower than the regional average (15.3 km)
Regional average: 15.3 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

  • Escanaba Segment
    Distance: 218 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Clear Lake Volcanic Field
    Distance: 252 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Jackson Segment
    Distance: 255 km ·Fissure vent(s) ·Elevation: -3'100 m ·United States
  • Shasta
    Distance: 260 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • North Gorda Ridge Segment
    Distance: 288 km ·Fissure vent(s) ·Elevation: -3'000 m ·Last eruption: 1996 ·United States
  • Lassen Volcanic Center
    Distance: 296 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States

Historic earthquake map · United States

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Country statistics · United States

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

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