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United States · California

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

UTC time: 2026-10-21 01:34:27 UTC Local time: —

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About this earthquake

On October 21, 2026 at 01:34 UTC, a magnitude M1.1 earthquake occurred near San Diego County, California (United States). The hypocenter lay relatively close to the surface at around 15 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 155 earthquakes, the strongest at M5.3.

Details

ID
21996d9ae06409e64b0deb88dd101f472c00b527
Magnitude
M1.1
Depth
15.1 km
UTC time
2026-10-21 01:34:27 UTC
Local time
—
Country
United States
State
California
City
San Diego County
County
San Diego County
Source
usgs
Coordinates
33.13633, -116.48666
Temperature
19.4°C

Depth profile

Depth profile Depth: 15.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 15.1 km
Shallow
15.1 km
15.1 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: 81 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 314 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • San Luis, Isla
    Distance: 403 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Ubehebe Craters
    Distance: 441 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Jaraguay Volcanic Field
    Distance: 463 km ·Volcanic field ·Elevation: 960 m ·Mexico
  • Uinkaret Field
    Distance: 473 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States

California

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 2,447 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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