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M1.0 Depth: 9.7 km

M1.0 Earthquake near 5 km ENE of Calimesa, CA (United States)

UTC time: 2025-10-21 03:07:56 UTC Local time: —

About this earthquake

A magnitude M1.0 earthquake was recorded near 5 km ENE of Calimesa, CA (United States) on October 21, 2025 at 03:07 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: 179 earthquakes were recorded in the past 24 hours, the strongest reaching M4.7.

Details

Magnitude
M1.0
Depth
9.7 km
UTC time
2025-10-21 03:07:56 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
33.99917, -116.99583
Temperature
18.6°C

Map

Depth profile

Depth profile Depth: 9.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 9.7 km
Shallow
9.7 km
9.7 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

  • Salton Buttes
    Distance: 156 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 338 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 404 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Uinkaret Field
    Distance: 440 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Mammoth Mountain
    Distance: 444 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 461 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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