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M1.8 Depth: 45.4 km

M1.8 Earthquake near 21 km SW of Nanwalek, Alaska (United States)

UTC time: 2025-08-05 03:52:54 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near 21 km SW of Nanwalek, Alaska (United States) on August 5, 2025 at 03:52 UTC. With a focal depth of about 45 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 data is provided by USGS and cross-checked across seismological networks. United States: 216 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

Magnitude
M1.8
Depth
45.4 km
UTC time
2025-08-05 03:52:54 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
59.23390, -152.21360
Temperature
12.9°C

Map

Depth profile

Depth profile Depth: 45.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 45.4 km
Shallow
45.4 km
45.4 km — deeper 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

  • Augustine
    Distance: 71 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 87 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Fourpeaked
    Distance: 98 km ·Stratovolcano ·Elevation: 2'105 m ·Last eruption: 2006 ·United States
  • Iliamna
    Distance: 102 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Kaguyak
    Distance: 125 km ·Lava dome(s) ·Elevation: 901 m ·Last eruption: -3850 ·United States
  • Redoubt
    Distance: 142 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·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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