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M1.2 Depth: 18.4 km

M1.2 Earthquake near Diamond Bar, California (United States)

UTC time: 2026-05-17 23:34:53 UTC Local time: —

About this earthquake

A magnitude M1.2 earthquake was recorded near Diamond Bar, California (United States) on May 17, 2026 at 23:34 UTC. The hypocenter lay relatively close to the surface at around 18 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: 171 earthquakes were recorded in the past 24 hours, the strongest reaching M3.6.

Map

Depth profile

Depth profile Depth: 18.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 18.4 km
Shallow
18.4 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: 222 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 341 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 421 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 440 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 461 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Pinacate
    Distance: 468 km ·Volcanic field ·Elevation: 1'183 m ·Mexico

Sources: Smithsonian GVP & USGS

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