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M1.2 Depth: 5.0 km

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

UTC time: 2026-02-28 12:40:07 UTC Local time: —

About this earthquake

On February 28, 2026 at 12:40 UTC, a magnitude M1.2 earthquake occurred near Unorganized Borough, Alaska (United States). With a focal depth of about 5 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. 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 209 earthquakes, the strongest at M3.8.

Map

Depth profile

Depth profile Depth: 5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 5 km
Shallow
5 km
5 km — shallower 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

  • Spurr
    Distance: 206 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 220 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 245 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Wrangell
    Distance: 252 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Iliamna
    Distance: 283 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Buzzard Creek
    Distance: 325 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·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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