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M1.7 Depth: 18.5 km

M1.7 Earthquake near 15 km WSW of Petrolia, CA (United States)

UTC time: 2025-10-17 06:48:07 UTC Local time: —

About this earthquake

On October 17, 2025 at 06:48 UTC, a magnitude M1.7 earthquake occurred near 15 km WSW of Petrolia, CA (United States). With a focal depth of about 18 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 204 earthquakes, the strongest at M5.5.

Details

Magnitude
M1.7
Depth
18.5 km
UTC time
2025-10-17 06:48:07 UTC
Local time
—
Country
United States
Source
usgs
Coordinates
40.28700, -124.45583
Temperature
13.1°C

Map

Depth profile

Depth profile Depth: 18.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 18.5 km
Shallow
18.5 km
18.5 km — close to 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: 206 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Shasta
    Distance: 228 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Lassen Volcanic Center
    Distance: 251 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Escanaba Segment
    Distance: 268 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Medicine Lake
    Distance: 285 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Jackson Segment
    Distance: 300 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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