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M3.1 Depth: 4.7 km

M3.1 Earthquake near 8 km NNE of Coso Junction, CA (United States)

UTC time: 2025-09-21 01:15:07 UTC Local time: —

About this earthquake

On September 21, 2025 at 01:15 UTC, a magnitude M3.1 earthquake occurred near 8 km NNE of Coso Junction, 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. Earthquakes of this magnitude are often felt but rarely cause damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 167 earthquakes, the strongest at M3.7.

Details

Magnitude
M3.1
Depth
4.7 km
UTC time
2025-09-21 01:15:07 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
36.10383, -117.90183
Temperature
14.6°C

Map

Depth profile

Depth profile Depth: 4.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 4.7 km
Shallow
4.7 km
4.7 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

  • Ubehebe Craters
    Distance: 110 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 197 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 214 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 233 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Salton Buttes
    Distance: 385 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Soda Lakes
    Distance: 390 km ·Maar(s) ·Elevation: 1'251 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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