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M1.8 Depth: 12.8 km

M1.8 Earthquake near 8 km ESE of Westhaven-Moonstone, CA (United States)

UTC time: 2025-12-11 23:30:29 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near 8 km ESE of Westhaven-Moonstone, CA (United States) on December 11, 2025 at 23:30 UTC. With a focal depth of about 13 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 176 earthquakes, the strongest at M3.3.

Details

Magnitude
M1.8
Depth
12.8 km
UTC time
2025-12-11 23:30:29 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
41.02150, -124.01100
Temperature
11.4°C

Map

Depth profile

Depth profile Depth: 12.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.8 km
Shallow
12.8 km
12.8 km — close to the regional average (15.6 km)
Regional average: 15.6 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

  • Shasta
    Distance: 158 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Medicine Lake
    Distance: 215 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Lassen Volcanic Center
    Distance: 219 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Clear Lake Volcanic Field
    Distance: 251 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Crater Lake
    Distance: 265 km ·Caldera ·Elevation: 2'487 m ·Last eruption: -2850 ·United States
  • Jackson Segment
    Distance: 282 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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