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M1.6 Depth: 8.8 km

M1.6 Earthquake near 21 km SW of Westmorland, CA (United States)

UTC time: 2025-10-04 18:37:02 UTC Local time: —

About this earthquake

A magnitude M1.6 earthquake was recorded near 21 km SW of Westmorland, CA (United States) on October 4, 2025 at 18:37 UTC. With a focal depth of about 9 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: 169 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

Magnitude
M1.6
Depth
8.8 km
UTC time
2025-10-04 18:37:02 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
32.91983, -115.80183
Temperature
28.1°C

Map

Depth profile

Depth profile Depth: 8.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8.8 km
Shallow
8.8 km
8.8 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

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  • Uinkaret Field
    Distance: 456 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • San Francisco Volcanic Field
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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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