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M1.2 Depth: 18.0 km

M1.2 Earthquake near 18 km SSE of Tyonek, Alaska (United States)

UTC time: 2025-09-08 23:02:36 UTC Local time: —

About this earthquake

A magnitude M1.2 earthquake was recorded near 18 km SSE of Tyonek, Alaska (United States) on September 8, 2025 at 23:02 UTC. With a focal depth of about 18 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 201 earthquakes, the strongest at M4.8.

Details

Magnitude
M1.2
Depth
18.0 km
UTC time
2025-09-08 23:02:36 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
60.91250, -151.03550
Temperature
13.6°C

Map

Depth profile

Depth profile Depth: 18 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 18 km
Shallow
18 km
18 km — close to 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: 78 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 104 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Hayes
    Distance: 109 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Iliamna
    Distance: 149 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 218 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 268 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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