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M1.6 Depth: 3.7 km

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

UTC time: 2026-05-20 21:33:39 UTC Local time: —

About this earthquake

A magnitude M1.6 earthquake was recorded near Rancho San Diego, California (United States) on May 20, 2026 at 21:33 UTC. With a focal depth of about 4 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by SCEDC. United States: 173 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Map

Depth profile

Depth profile Depth: 3.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 3.7 km
Shallow
3.7 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: 129 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 336 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • San Luis, Isla
    Distance: 391 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Jaraguay Volcanic Field
    Distance: 446 km ·Volcanic field ·Elevation: 960 m ·Mexico
  • Ubehebe Craters
    Distance: 475 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States

Sources: Smithsonian GVP & USGS

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