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M2.2 Depth: 1.3 km

M2.2 Earthquake near Alpine County, California (United States)

UTC time: 2026-08-21 21:52:30 UTC Local time: —

About this earthquake

On August 21, 2026 at 21:52 UTC, a magnitude M2.2 earthquake occurred near Alpine County, California (United States). The hypocenter lay relatively close to the surface at around 1 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 225 earthquakes, the strongest at M3.9.

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Depth profile

Depth profile Depth: 1.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1.3 km
Shallow
1.3 km
1.3 km — shallower than the regional average (15.4 km)
Regional average: 15.4 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

  • Mono Lake Volcanic Field
    Distance: 88 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Mono-Inyo Craters
    Distance: 106 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 122 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Soda Lakes
    Distance: 123 km ·Maar(s) ·Elevation: 1'251 m ·United States
  • Lassen Volcanic Center
    Distance: 262 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Ubehebe Craters
    Distance: 263 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·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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