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M1.2 Depth: 9.6 km

M1.2 Earthquake near 6 km NE of Alamo, CA (United States)

UTC time: 2025-12-19 02:26:17 UTC Local time: —

About this earthquake

A magnitude M1.2 earthquake was recorded near 6 km NE of Alamo, CA (United States) on December 19, 2025 at 02:26 UTC. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 209 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

Magnitude
M1.2
Depth
9.6 km
UTC time
2025-12-19 02:26:17 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
37.89283, -121.98283
Temperature
12.4°C

Map

Depth profile

Depth profile Depth: 9.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 9.6 km
Shallow
9.6 km
9.6 km — shallower than the regional average (15.7 km)
Regional average: 15.7 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

  • Clear Lake Volcanic Field
    Distance: 138 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Mono Lake Volcanic Field
    Distance: 259 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Mono-Inyo Craters
    Distance: 260 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 261 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Lassen Volcanic Center
    Distance: 292 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Soda Lakes
    Distance: 325 km ·Maar(s) ·Elevation: 1'251 m ·United States

Historic earthquake map · United States

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Country statistics · United States

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View earthquake KPIs, strongest and latest events, and averages for this country.

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