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United States

M0.9 Earthquake near 57 km WNW of Tyonek, Alaska (United States)

UTC time: 2025-11-23 01:58:55 UTC Local time: —

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About this earthquake

A magnitude M0.9 earthquake was recorded near 57 km WNW of Tyonek, Alaska (United States) on November 23, 2025 at 01:58 UTC. The hypocenter lay relatively close to the surface at around 20 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 189 earthquakes were recorded in the past 24 hours, the strongest reaching M4.0.

Details

ID
a51b708b68c486cd73ffec83f744c60dbde95348
Magnitude
M0.9
Depth
19.9 km
UTC time
2025-11-23 01:58:55 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
61.26191, -152.12508
Temperature
-7.1°C

Depth profile

Depth profile Depth: 19.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 19.9 km
Shallow
19.9 km
19.9 km — deeper than the regional average (15.2 km)
Regional average: 15.2 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: 8 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 45 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 93 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 147 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 223 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 279 km ·Stratovolcano ·Elevation: 2'140 m ·United States

Alaska

Context for this earthquake

22 Sep 2025 – 22 Sep 2026 · M ≥ 2.0 · 4,126 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

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Historic earthquake map · United States

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Country statistics · United States

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