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United States · California

M1.1 Earthquake near San Bernardino County, California (United States)

UTC time: 2026-09-28 03:00:18 UTC Local time: —
Magnitude
M1.1
Depth
11.0 km
Source
USGS

California · San Bernardino County

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About this earthquake

On September 28, 2026 at 03:00 UTC, a magnitude M1.1 earthquake occurred near San Bernardino County, California (United States). The hypocenter lay relatively close to the surface at around 11 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 179 earthquakes, the strongest at M4.8.

Depth profile

Depth profile Depth: 11 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11 km
Shallow
11 km
11 km — shallower than the regional average (15.2 km)
Regional average: 15.2 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

  • Ubehebe Craters
    Distance: 140 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 246 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 262 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 281 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Salton Buttes
    Distance: 336 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Uinkaret Field
    Distance: 404 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States

California

Context for this earthquake

28 Sep 2025 – 28 Sep 2026 · M ≥ 2.0 · 2,434 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

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

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