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M0.9 Depth: 11.4 km

M0.9 Earthquake near 4 km SW of Palomar Observatory, CA (United States)

UTC time: 2025-10-28 13:03:44 UTC Local time: —

About this earthquake

On October 28, 2025 at 13:03 UTC, a magnitude M0.9 earthquake occurred near 4 km SW of Palomar Observatory, CA (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. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 185 earthquakes were recorded in the past 24 hours, the strongest reaching M5.0.

Details

Magnitude
M0.9
Depth
11.4 km
UTC time
2025-10-28 13:03:44 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
33.33350, -116.89183
Temperature
20.9°C

Map

Depth profile

Depth profile Depth: 11.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11.4 km
Shallow
11.4 km
11.4 km — shallower than 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: 120 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 358 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Ubehebe Craters
    Distance: 413 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • San Luis, Isla
    Distance: 441 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Uinkaret Field
    Distance: 482 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Jaraguay Volcanic Field
    Distance: 500 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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