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M1.3 Depth: 11.1 km

M1.3 Earthquake near 16 km NNW of Igiugig, Alaska (United States)

UTC time: 2025-07-29 07:59:35 UTC Local time: —

About this earthquake

A magnitude M1.3 earthquake was recorded near 16 km NNW of Igiugig, Alaska (United States) on July 29, 2025 at 07:59 UTC. The hypocenter lay relatively close to the surface at around 11 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 256 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

Magnitude
M1.3
Depth
11.1 km
UTC time
2025-07-29 07:59:35 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
59.45910, -156.02850
Temperature
15.9°C

Map

Depth profile

Depth profile Depth: 11.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11.1 km
Shallow
11.1 km
11.1 km — shallower than the regional average (15.3 km)
Regional average: 15.3 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: 134 km ·Stratovolcano ·Elevation: 2'317 m ·Last eruption: -1790 ·United States
  • Novarupta
    Distance: 142 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States
  • Katmai
    Distance: 145 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States
  • Trident
    Distance: 146 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Snowy Mountain
    Distance: 147 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·United States
  • Denison
    Distance: 147 km ·Stratovolcano ·Elevation: 2'287 m ·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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