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M1.0 Depth: 2.6 km

M1.0 Earthquake near 3 km NNW of Azusa, CA (United States)

UTC time: 2025-12-22 21:28:11 UTC Local time: —

About this earthquake

On December 22, 2025 at 21:28 UTC, a magnitude M1.0 earthquake occurred near 3 km NNW of Azusa, CA (United States). With a focal depth of about 3 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 229 earthquakes, the strongest at M6.0.

Details

Magnitude
M1.0
Depth
2.6 km
UTC time
2025-12-22 21:28:11 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
34.15300, -117.92250
Temperature
17.3°C

Map

Depth profile

Depth profile Depth: 2.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 2.6 km
Shallow
2.6 km
2.6 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

  • Salton Buttes
    Distance: 238 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 322 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 399 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 418 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 439 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Pinacate
    Distance: 485 km ·Volcanic field ·Elevation: 1'183 m ·Mexico

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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