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United States · California

M1.6 Earthquake near San Diego County, California (United States)

UTC time: 2026-08-21 08:32:43 UTC Local time: —

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About this earthquake

On August 21, 2026 at 08:32 UTC, a magnitude M1.6 earthquake occurred near San Diego County, California (United States). With a focal depth of about 8 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The event was recorded by SCEDC. United States: 183 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

ID
cf9ba5f60a703210ab1cdc2e6aebd3ddee837c6a
Magnitude
M1.6
Depth
7.6 km
UTC time
2026-08-21 08:32:43 UTC
Local time
—
Country
United States
State
California
City
San Diego County
County
San Diego County
Source
scedc
Coordinates
33.30067, -116.71317
Temperature
24.5°C

Depth profile

Depth profile Depth: 7.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 7.6 km
Shallow
7.6 km
7.6 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: 103 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 342 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Ubehebe Craters
    Distance: 419 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: 473 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Jaraguay Volcanic Field
    Distance: 489 km ·Volcanic field ·Elevation: 960 m ·Mexico

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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