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M1.8 Depth: 115.0 km

M1.8 Earthquake near 63 km E of Port Alsworth, Alaska (United States)

UTC time: 2025-06-20 16:00:06 UTC Local time: —

About this earthquake

On June 20, 2025 at 16:00 UTC, a magnitude M1.8 earthquake occurred near 63 km E of Port Alsworth, Alaska (United States). The earthquake originated at an intermediate depth of about 115 km. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 182 earthquakes, the strongest at M4.4.

Details

Magnitude
M1.8
Depth
115.0 km
UTC time
2025-06-20 16:00:06 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
60.24980, -153.17790
Temperature
5.7°C

Map

Depth profile

Depth profile Depth: 115 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 115 km
Intermediate
115 km
115 km — deeper than the regional average (15.3 km)
Regional average: 15.3 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Iliamna
    Distance: 25 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Redoubt
    Distance: 35 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Augustine
    Distance: 100 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Spurr
    Distance: 127 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Douglas
    Distance: 156 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Hayes
    Distance: 160 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·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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