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M0.4 Depth: 12.9 km

M0.4 Earthquake near San Diego County, California (United States)

UTC time: 2026-08-09 03:37:40 UTC Local time: —

About this earthquake

A magnitude M0.4 earthquake was recorded near San Diego County, California (United States) on August 9, 2026 at 03:37 UTC. The hypocenter lay relatively close to the surface at around 13 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: 185 earthquakes were recorded in the past 24 hours, the strongest reaching M5.0.

Map

Depth profile

Depth profile Depth: 12.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.9 km
Shallow
12.9 km
12.9 km — close to the regional average (15.5 km)
Regional average: 15.5 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: 105 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 343 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Ubehebe Craters
    Distance: 420 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • San Luis, Isla
    Distance: 430 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Uinkaret Field
    Distance: 476 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Jaraguay Volcanic Field
    Distance: 489 km ·Volcanic field ·Elevation: 960 m ·Mexico

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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