Back to map
United States · Alaska

M2.2 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-09-21 09:15:31 UTC Local time: —

Map

About this earthquake

On September 21, 2026 at 09:15 UTC, a magnitude M2.2 earthquake occurred near Unorganized Borough, Alaska (United States). With a focal depth of about 9 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 181 earthquakes, the strongest at M3.3.

Depth profile

Depth profile Depth: 8.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8.9 km
Shallow
8.9 km
8.9 km — shallower than the regional average (15.2 km)
Regional average: 15.2 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

  • Buzzard Creek
    Distance: 254 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Hayes
    Distance: 489 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States

Alaska

Context for this earthquake

21 Sep 2025 – 21 Sep 2026 · M ≥ 2.0 · 4,118 Catalogue entries

Of 4,117 other entries for this area and period, 2,345 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

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.

Share