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M1.2 Depth: 88.8 km

M1.2 Earthquake near 48 km W of Tyonek, Alaska (United States)

UTC time: 2025-09-28 12:08:31 UTC Local time: —

About this earthquake

A magnitude M1.2 earthquake was recorded near 48 km W of Tyonek, Alaska (United States) on September 28, 2025 at 12:08 UTC. The earthquake originated at an intermediate depth of about 89 km. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 168 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

Magnitude
M1.2
Depth
88.8 km
UTC time
2025-09-28 12:08:31 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
60.98980, -152.02060
Temperature
3.7°C

Map

Depth profile

Depth profile Depth: 88.8 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 88.8 km
Intermediate
88.8 km
88.8 km — deeper than the regional average (15.4 km)
Regional average: 15.4 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Spurr
    Distance: 37 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 68 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Hayes
    Distance: 75 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Iliamna
    Distance: 122 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 197 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 252 km ·Stratovolcano ·Elevation: 2'140 m ·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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