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M1.4 Depth: 11.6 km

M1.4 Earthquake near 12 km SE of Petrolia, CA (United States)

UTC time: 2025-10-20 14:35:11 UTC Local time: —

About this earthquake

On October 20, 2025 at 14:35 UTC, a magnitude M1.4 earthquake occurred near 12 km SE of Petrolia, CA (United States). With a focal depth of about 12 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 191 earthquakes, the strongest at M4.7.

Details

Magnitude
M1.4
Depth
11.6 km
UTC time
2025-10-20 14:35:11 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
40.25183, -124.18417
Temperature
11.7°C

Map

Depth profile

Depth profile Depth: 11.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11.6 km
Shallow
11.6 km
11.6 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: 187 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Shasta
    Distance: 211 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Lassen Volcanic Center
    Distance: 228 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Medicine Lake
    Distance: 268 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Escanaba Segment
    Distance: 291 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Jackson Segment
    Distance: 319 km ·Fissure vent(s) ·Elevation: -3'100 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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