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M1.8 Depth: 1.4 km

M1.8 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-07-21 05:21:43 UTC Local time: —

About this earthquake

On July 21, 2026 at 05:21 UTC, a magnitude M1.8 earthquake occurred near Unorganized Borough, Alaska (United States). With a focal depth of about 1 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 175 earthquakes, the strongest at M3.1.

Map

Depth profile

Depth profile Depth: 1.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1.4 km
Shallow
1.4 km
1.4 km — shallower than the regional average (15.6 km)
Regional average: 15.6 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: 175 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Wrangell
    Distance: 459 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Hayes
    Distance: 484 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·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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