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M1.1 Depth: 30.9 km

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

UTC time: 2026-05-28 22:12:53 UTC Local time: —

About this earthquake

A magnitude M1.1 earthquake was recorded near Placentia, California (United States) on May 28, 2026 at 22:12 UTC. The hypocenter lay relatively close to the surface at around 31 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: 159 earthquakes were recorded in the past 24 hours, the strongest reaching M3.6.

Details

Magnitude
M1.1
Depth
30.9 km
UTC time
2026-05-28 22:12:53 UTC
Local time
—
Country
United States
State
California
City
Placentia
County
Orange County
Source
scedc
Coordinates
33.90917, -117.81783
Temperature
19.7°C

Map

Depth profile

Depth profile Depth: 30.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 30.9 km
Shallow
30.9 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: 219 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 348 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 428 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 447 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Pinacate
    Distance: 464 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Mono Lake Volcanic Field
    Distance: 468 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States

Sources: Smithsonian GVP & USGS

Historic earthquake map · United States

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Country statistics · United States

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View earthquake KPIs, strongest and latest events, and averages for this country.

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