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M0.5 Depth: 10.6 km

M0.5 Earthquake near San Diego County, California (United States)

UTC time: 2026-09-04 21:46:31 UTC Local time: —

About this earthquake

On September 4, 2026 at 21:46 UTC, a magnitude M0.5 earthquake occurred near San Diego County, California (United States). With a focal depth of about 11 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. 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 171 earthquakes, the strongest at M3.5.

Map

Depth profile

Depth profile Depth: 10.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10.6 km
Shallow
10.6 km
10.6 km — shallower than 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: 102 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 344 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Ubehebe Craters
    Distance: 411 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • San Luis, Isla
    Distance: 436 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Uinkaret Field
    Distance: 467 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Jaraguay Volcanic Field
    Distance: 496 km ·Volcanic field ·Elevation: 960 m ·Mexico

Historic earthquake map · United States

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Country statistics · United States

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

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