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M1.0 Depth: 21.8 km

M1.0 Earthquake near 4 km NNE of Vista, CA (United States)

UTC time: 2025-08-21 01:23:38 UTC Local time: —

About this earthquake

A magnitude M1.0 earthquake was recorded near 4 km NNE of Vista, CA (United States) on August 21, 2025 at 01:23 UTC. With a focal depth of about 22 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 201 earthquakes, the strongest at M3.7.

Details

Magnitude
M1.0
Depth
21.8 km
UTC time
2025-08-21 01:23:38 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
33.22983, -117.23000
Temperature
23.0°C

Map

Depth profile

Depth profile Depth: 21.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 21.8 km
Shallow
21.8 km
21.8 km — deeper 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

  • Salton Buttes
    Distance: 150 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 382 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Ubehebe Craters
    Distance: 422 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • San Luis, Isla
    Distance: 450 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico

Historic earthquake map · United States

Open history map
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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