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M1.4 Depth: 12.2 km

M1.4 Earthquake near 1 km NNE of Loma Linda, CA (United States)

UTC time: 2025-12-21 01:42:53 UTC Local time: —

About this earthquake

On December 21, 2025 at 01:42 UTC, a magnitude M1.4 earthquake occurred near 1 km NNE of Loma Linda, CA (United States). The hypocenter lay relatively close to the surface at around 12 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 233 earthquakes, the strongest at M6.0.

Details

Magnitude
M1.4
Depth
12.2 km
UTC time
2025-12-21 01:42:53 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
34.05867, -117.25500
Temperature
12.5°C

Map

Depth profile

Depth profile Depth: 12.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.2 km
Shallow
12.2 km
12.2 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: 179 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 330 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 428 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Mammoth Mountain
    Distance: 428 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 446 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Uinkaret Field
    Distance: 455 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·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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