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M3.9 Depth: 15.8 km

M3.9 Earthquake near SOUTHERN CALIFORNIA (United States)

UTC time: 2025-08-05 06:59:15 UTC Local time: —

About this earthquake

A magnitude M3.9 earthquake was recorded near SOUTHERN CALIFORNIA (United States) on August 5, 2025 at 06:59 UTC. With a focal depth of about 16 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 199 earthquakes, the strongest at M4.1.

Details

Magnitude
M3.9
Depth
15.8 km
UTC time
2025-08-05 06:59:15 UTC
Local time
—
Country
United States
City
California
Source
emsc
Coordinates
32.91340, -115.53040
Temperature
30.0°C

Map

Depth profile

Depth profile Depth: 15.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 15.8 km
Shallow
15.8 km
15.8 km — close to the regional average (15.3 km)
Regional average: 15.3 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

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    Distance: 344 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Jaraguay Volcanic Field
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  • Uinkaret Field
    Distance: 444 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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