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M1.1 Depth: 5.0 km

M1.1 Earthquake near 23 km SW of Westmorland, CA (United States)

UTC time: 2025-10-04 17:33:40 UTC Local time: —

About this earthquake

On October 4, 2025 at 17:33 UTC, a magnitude M1.1 earthquake occurred near 23 km SW of Westmorland, CA (United States). With a focal depth of about 5 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: 170 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

Magnitude
M1.1
Depth
5.0 km
UTC time
2025-10-04 17:33:40 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
32.90917, -115.81333
Temperature
27.5°C

Map

Depth profile

Depth profile Depth: 5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 5 km
Shallow
5 km
5 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

  • Salton Buttes
    Distance: 37 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 247 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • San Luis, Isla
    Distance: 353 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Jaraguay Volcanic Field
    Distance: 417 km ·Volcanic field ·Elevation: 960 m ·Mexico
  • Uinkaret Field
    Distance: 457 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • San Francisco Volcanic Field
    Distance: 467 km ·Volcanic field ·Elevation: 3'850 m ·Last eruption: 1075 ·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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