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M1.8 Depth: 30.3 km

M1.8 Earthquake near 42 km SSW of Nanwalek, Alaska (United States)

UTC time: 2025-08-26 21:41:54 UTC Local time: —

About this earthquake

On August 26, 2025 at 21:41 UTC, a magnitude M1.8 earthquake occurred near 42 km SSW of Nanwalek, Alaska (United States). With a focal depth of about 30 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 230 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

Magnitude
M1.8
Depth
30.3 km
UTC time
2025-08-26 21:41:54 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
59.03590, -152.31370
Temperature
12.8°C

Map

Depth profile

Depth profile Depth: 30.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 30.3 km
Shallow
30.3 km
30.3 km — deeper than 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

  • Douglas
    Distance: 73 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Augustine
    Distance: 73 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Fourpeaked
    Distance: 83 km ·Stratovolcano ·Elevation: 2'105 m ·Last eruption: 2006 ·United States
  • Kaguyak
    Distance: 109 km ·Lava dome(s) ·Elevation: 901 m ·Last eruption: -3850 ·United States
  • Iliamna
    Distance: 119 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Kukak
    Distance: 134 km ·Stratovolcano ·Elevation: 2'043 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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