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M3.1 Depth: 23.4 km

M3.1 Earthquake near Anchorage, Alaska (United States)

UTC time: 2026-08-20 11:23:13 UTC Local time: —

About this earthquake

A magnitude M3.1 earthquake was recorded near Anchorage, Alaska (United States) on August 20, 2026 at 11:23 UTC. The hypocenter lay relatively close to the surface at around 23 km, increasing how strongly it was felt. Earthquakes of this magnitude are often felt but rarely cause damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 231 earthquakes, the strongest at M3.9.

Details

Magnitude
M3.1
Depth
23.4 km
UTC time
2026-08-20 11:23:13 UTC
Local time
—
Country
United States
State
Alaska
City
Anchorage
Source
usgs
Coordinates
61.17600, -149.22600
Temperature
7.8°C

Map

Depth profile

Depth profile Depth: 23.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 23.4 km
Shallow
23.4 km
23.4 km — deeper 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

  • Spurr
    Distance: 162 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 177 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 205 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 246 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Wrangell
    Distance: 291 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Augustine
    Distance: 307 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·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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