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M1.2 Depth: 37.6 km

M1.2 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-02-28 05:13:34 UTC Local time: —

About this earthquake

A magnitude M1.2 earthquake was recorded near Unorganized Borough, Alaska (United States) on February 28, 2026 at 05:13 UTC. The hypocenter lay relatively close to the surface at around 38 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: 165 earthquakes were recorded in the past 24 hours, the strongest reaching M5.1.

Map

Depth profile

Depth profile Depth: 37.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 37.6 km
Shallow
37.6 km
37.6 km — deeper than the regional average (15.8 km)
Regional average: 15.8 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

  • Churchill
    Distance: 124 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Wrangell
    Distance: 168 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Fort Selkirk
    Distance: 408 km ·Volcanic field ·Elevation: 1'239 m ·Canada
  • Alligator Lake
    Distance: 430 km ·Volcanic field ·Elevation: 2'217 m ·Canada
  • Buzzard Creek
    Distance: 474 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Spurr
    Distance: 492 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States

Historic earthquake map · United States

Open history map
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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