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United States · California

M1.0 Earthquake near San Diego County, California (United States)

UTC time: 2026-09-28 17:54:33 UTC Local time: —

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About this earthquake

On September 28, 2026 at 17:54 UTC, a magnitude M1.0 earthquake occurred near San Diego 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 164 earthquakes, the strongest at M4.1.

Details

ID
3ea6e3dad8727e1365f40d65d43dc45eb8cc0a0a
Magnitude
M1.0
Depth
10.7 km
UTC time
2026-09-28 17:54:33 UTC
Local time
—
Country
United States
State
California
City
San Diego County
County
San Diego County
Source
usgs
Coordinates
33.29150, -116.28300
Temperature
18.4°C

Depth profile

Depth profile Depth: 10.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10.7 km
Shallow
10.7 km
10.7 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

  • Salton Buttes
    Distance: 63 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 306 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • San Luis, Isla
    Distance: 409 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Ubehebe Craters
    Distance: 428 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Uinkaret Field
    Distance: 448 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Jaraguay Volcanic Field
    Distance: 472 km ·Volcanic field ·Elevation: 960 m ·Mexico

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.

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Historic earthquake map · United States

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Country statistics · United States

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