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M1.4 Earthquake near 1 km WSW of San Dimas, CA (United States)

UTC time: 2025-04-28 16:04:24 UTC Local time: —

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About this earthquake

A magnitude M1.4 earthquake was recorded near 1 km WSW of San Dimas, CA (United States) on April 28, 2025 at 16:04 UTC. With a focal depth of about 13 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 172 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

ID
dcfc77721094a711fc059da591b436794b614c4f
Magnitude
M1.4
Depth
12.7 km
UTC time
2025-04-28 16:04:24 UTC
Local time
—
Country
United States
Source
usgs
Coordinates
34.10400, -117.82133
Temperature
14.7°C

Depth profile

Depth profile Depth: 12.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.7 km
Shallow
12.7 km
12.7 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

  • Salton Buttes
    Distance: 228 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 326 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 407 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 426 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 447 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Pinacate
    Distance: 475 km ·Volcanic field ·Elevation: 1'183 m ·Mexico

Historic earthquake map · United States

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Country statistics · United States

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