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M1.9 Depth: 14.8 km

M1.9 Earthquake near 10 km WSW of Petrolia, CA (United States)

UTC time: 2025-10-31 12:13:50 UTC Local time: —

About this earthquake

A magnitude M1.9 earthquake was recorded near 10 km WSW of Petrolia, CA (United States) on October 31, 2025 at 12:13 UTC. The hypocenter lay relatively close to the surface at around 15 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: 160 earthquakes were recorded in the past 24 hours, the strongest reaching M3.6.

Details

Magnitude
M1.9
Depth
14.8 km
UTC time
2025-10-31 12:13:50 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
40.29050, -124.40000
Temperature
12.4°C

Map

Depth profile

Depth profile Depth: 14.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 14.8 km
Shallow
14.8 km
14.8 km — close to the regional average (15.5 km)
Regional average: 15.5 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: 203 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Shasta
    Distance: 223 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Lassen Volcanic Center
    Distance: 246 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Escanaba Segment
    Distance: 273 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Medicine Lake
    Distance: 280 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Jackson Segment
    Distance: 303 km ·Fissure vent(s) ·Elevation: -3'100 m ·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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