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M1.2 Depth: 8.2 km

M1.2 Earthquake near Rancho Cucamonga, California (United States)

UTC time: 2026-05-27 17:36:50 UTC Local time: —

About this earthquake

On May 27, 2026 at 17:36 UTC, a magnitude M1.2 earthquake occurred near Rancho Cucamonga, California (United States). The hypocenter lay relatively close to the surface at around 8 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by SCEDC and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 170 earthquakes, the strongest at M3.6.

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Depth profile

Depth profile Depth: 8.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8.2 km
Shallow
8.2 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: 208 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 323 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 412 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 430 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 451 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Pinacate
    Distance: 456 km ·Volcanic field ·Elevation: 1'183 m ·Mexico

Sources: Smithsonian GVP & USGS

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