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M1.3 Depth: 8.3 km

M1.3 Earthquake near 3 km E of Big Bear Lake, CA (United States)

UTC time: 2025-08-21 20:10:14 UTC Local time: —

About this earthquake

On August 21, 2025 at 20:10 UTC, a magnitude M1.3 earthquake occurred near 3 km E of Big Bear Lake, CA (United States). With a focal depth of about 8 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 196 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

Magnitude
M1.3
Depth
8.3 km
UTC time
2025-08-21 20:10:14 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
34.23967, -116.88383
Temperature
36.4°C

Map

Depth profile

Depth profile Depth: 8.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8.3 km
Shallow
8.3 km
8.3 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: 165 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 313 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 412 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Uinkaret Field
    Distance: 415 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Mammoth Mountain
    Distance: 424 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 441 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·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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