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United States · California

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

UTC time: 2026-09-20 13:44:47 UTC Local time: —

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About this earthquake

On September 20, 2026 at 13:44 UTC, a magnitude M1.0 earthquake occurred near San Diego County, California (United States). The hypocenter lay relatively close to the surface at around 16 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 187 earthquakes, the strongest at M5.3.

Details

ID
12506391126c13b2b7f59d64b9afb88f5db69f4b
Magnitude
M1.0
Depth
16.3 km
UTC time
2026-09-20 13:44:47 UTC
Local time
—
Country
United States
State
California
City
San Diego County
County
San Diego County
Source
usgs
Coordinates
33.30883, -116.78250
Temperature
16.0°C

Depth profile

Depth profile Depth: 16.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 16.3 km
Shallow
16.3 km
16.3 km — close to 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: 109 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 348 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Ubehebe Craters
    Distance: 417 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • San Luis, Isla
    Distance: 434 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Uinkaret Field
    Distance: 477 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Jaraguay Volcanic Field
    Distance: 493 km ·Volcanic field ·Elevation: 960 m ·Mexico

California

Context for this earthquake

20 Sep 2025 – 20 Sep 2026 · M ≥ 2.0 · 2,417 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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