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United States

M1.6 Earthquake near 8 km NNE of Bridgeport, California (United States)

UTC time: 2025-12-15 21:27:58 UTC Local time: —

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About this earthquake

On December 15, 2025 at 21:27 UTC, a magnitude M1.6 earthquake occurred near 8 km NNE of Bridgeport, California (United States). The hypocenter lay relatively close to the surface at around 15 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 132 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

ID
5ea51e43175313056c98dbeb82e0294bb831b4b2
Magnitude
M1.6
Depth
14.5 km
UTC time
2025-12-15 21:27:58 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
38.32710, -119.20740
Temperature
11.6°C

Depth profile

Depth profile Depth: 14.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 14.5 km
Shallow
14.5 km
14.5 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

  • Mono Lake Volcanic Field
    Distance: 40 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Mono-Inyo Craters
    Distance: 60 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 79 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Soda Lakes
    Distance: 136 km ·Maar(s) ·Elevation: 1'251 m ·United States
  • Ubehebe Craters
    Distance: 212 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Lassen Volcanic Center
    Distance: 311 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States

California

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 2,447 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

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