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M1.1 Depth: 1.4 km

M1.1 Earthquake near 9 km of Calistoga, CA (United States)

UTC time: 2025-09-18 23:38:16 UTC Local time: —

About this earthquake

A magnitude M1.1 earthquake was recorded near 9 km of Calistoga, CA (United States) on September 18, 2025 at 23:38 UTC. The hypocenter lay relatively close to the surface at around 1 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 176 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

Magnitude
M1.1
Depth
1.4 km
UTC time
2025-09-18 23:38:16 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
38.65917, -122.60867
Temperature
22.6°C

Map

Depth profile

Depth profile Depth: 1.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1.4 km
Shallow
1.4 km
1.4 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

  • Clear Lake Volcanic Field
    Distance: 37 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 225 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Shasta
    Distance: 308 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Mono Lake Volcanic Field
    Distance: 321 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Mono-Inyo Craters
    Distance: 327 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 333 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States

Historic earthquake map · United States

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Country statistics · United States

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

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