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M1.7 Depth: 5.5 km

M1.7 Earthquake near San Diego County, California (United States)

UTC time: 2026-08-20 01:28:32 UTC Local time: —

About this earthquake

On August 20, 2026 at 01:28 UTC, a magnitude M1.7 earthquake occurred near San Diego County, California (United States). With a focal depth of about 6 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 USGS. United States: 244 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Map

Depth profile

Depth profile Depth: 5.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 5.5 km
Shallow
5.5 km
5.5 km — shallower than the regional average (15.4 km)
Regional average: 15.4 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

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  • San Luis, Isla
    Distance: 367 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Jaraguay Volcanic Field
    Distance: 427 km ·Volcanic field ·Elevation: 960 m ·Mexico
  • Ubehebe Craters
    Distance: 477 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Uinkaret Field
    Distance: 493 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States

Historic earthquake map · United States

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

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

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