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M1.9 Depth: 9.8 km

M1.9 Earthquake near San Diego County, California (United States)

UTC time: 2026-03-18 21:31:19 UTC Local time: —

About this earthquake

A magnitude M1.9 earthquake was recorded near San Diego County, California (United States) on March 18, 2026 at 21:31 UTC. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by SCEDC and cross-checked across seismological networks. United States: 179 earthquakes were recorded in the past 24 hours, the strongest reaching M3.0.

Map

Depth profile

Depth profile Depth: 9.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 9.8 km
Shallow
9.8 km
9.8 km — shallower than the regional average (15.8 km)
Regional average: 15.8 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: 176 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 399 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 413 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • San Luis, Isla
    Distance: 483 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Mammoth Mountain
    Distance: 487 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·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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