Back to map
M2.5 Depth: 20.0 km

M2.5 Earthquake near 71 km NW of Koliganek, Alaska (United States)

UTC time: 2025-09-19 09:26:55 UTC Local time: —

About this earthquake

A magnitude M2.5 earthquake was recorded near 71 km NW of Koliganek, Alaska (United States) on September 19, 2025 at 09:26 UTC. The hypocenter lay relatively close to the surface at around 20 km, increasing how strongly it was felt. 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 180 earthquakes, the strongest at M3.5.

Details

Magnitude
M2.5
Depth
20.0 km
UTC time
2025-09-19 09:26:55 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
60.15140, -158.24320
Temperature
8.0°C

Map

Depth profile

Depth profile Depth: 20 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20 km
Shallow
20 km
20 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

  • Griggs
    Distance: 268 km ·Stratovolcano ·Elevation: 2'317 m ·Last eruption: -1790 ·United States
  • Novarupta
    Distance: 273 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States
  • Martin
    Distance: 275 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Ukinrek Maars
    Distance: 276 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States
  • Mageik
    Distance: 276 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Trident
    Distance: 278 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·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.

Share