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M1.1 Depth: 4.0 km

M1.1 Earthquake near Glendora, California (United States)

UTC time: 2026-05-21 22:18:50 UTC Local time: —

About this earthquake

On May 21, 2026 at 22:18 UTC, a magnitude M1.1 earthquake occurred near Glendora, California (United States). With a focal depth of about 4 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 SCEDC. United States: over the past 24 hours, QuakeMap24 logged 171 earthquakes, the strongest at M3.6.

Map

Depth profile

Depth profile Depth: 4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 4 km
Shallow
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: 233 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 321 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 401 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 420 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 441 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Pinacate
    Distance: 480 km ·Volcanic field ·Elevation: 1'183 m ·Mexico

Sources: Smithsonian GVP & USGS

Historic earthquake map · United States

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Country statistics · United States

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