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M1.9 Depth: 54.3 km

M1.9 Earthquake near 8 km SSE of Susitna, Alaska (United States)

UTC time: 2025-10-29 22:21:24 UTC Local time: —

About this earthquake

On October 29, 2025 at 22:21 UTC, a magnitude M1.9 earthquake occurred near 8 km SSE of Susitna, Alaska (United States). The hypocenter lay relatively close to the surface at around 54 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: 173 earthquakes were recorded in the past 24 hours, the strongest reaching M5.5.

Details

Magnitude
M1.9
Depth
54.3 km
UTC time
2025-10-29 22:21:24 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
61.47520, -150.45150
Temperature
0.6°C

Map

Depth profile

Depth profile Depth: 54.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 54.3 km
Shallow
54.3 km
54.3 km — deeper than the regional average (15.5 km)
Regional average: 15.5 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: 98 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 105 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 165 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 215 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 286 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Buzzard Creek
    Distance: 305 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States

Historic earthquake map · United States

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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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