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M1.7 Depth: 217.2 km

M1.7 Earthquake near 35 km S of Port Graham, Alaska (United States)

UTC time: 2025-08-20 11:08:34 UTC Local time: —

About this earthquake

On August 20, 2025 at 11:08 UTC, a magnitude M1.7 earthquake occurred near 35 km S of Port Graham, Alaska (United States). The earthquake originated at an intermediate depth of about 217 km. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 197 earthquakes, the strongest at M3.7.

Details

Magnitude
M1.7
Depth
217.2 km
UTC time
2025-08-20 11:08:34 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
59.03780, -151.77750
Temperature
10.9°C

Map

Depth profile

Depth profile Depth: 217.2 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 217.2 km
Intermediate
217.2 km
217.2 km — deeper than the regional average (15.4 km)
Regional average: 15.4 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

  • Augustine
    Distance: 101 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 103 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Fourpeaked
    Distance: 113 km ·Stratovolcano ·Elevation: 2'105 m ·Last eruption: 2006 ·United States
  • Iliamna
    Distance: 133 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Kaguyak
    Distance: 138 km ·Lava dome(s) ·Elevation: 901 m ·Last eruption: -3850 ·United States
  • Kukak
    Distance: 162 km ·Stratovolcano ·Elevation: 2'043 m ·United States

Historic earthquake map · United States

Open history map
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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