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M1.6 Depth: 250.0 km

M1.6 Earthquake near 27 km SE of Port Graham, Alaska (United States)

UTC time: 2025-07-22 09:32:40 UTC Local time: —

About this earthquake

A magnitude M1.6 earthquake was recorded near 27 km SE of Port Graham, Alaska (United States) on July 22, 2025 at 09:32 UTC. The earthquake originated at an intermediate depth of about 250 km. 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: over the past 24 hours, QuakeMap24 logged 212 earthquakes, the strongest at M3.2.

Details

Magnitude
M1.6
Depth
250.0 km
UTC time
2025-07-22 09:32:40 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
59.14510, -151.55080
Temperature
12.6°C

Map

Depth profile

Depth profile Depth: 250 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 250 km
Intermediate
250 km
250 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

  • Augustine
    Distance: 110 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 119 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Fourpeaked
    Distance: 129 km ·Stratovolcano ·Elevation: 2'105 m ·Last eruption: 2006 ·United States
  • Iliamna
    Distance: 131 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Kaguyak
    Distance: 154 km ·Lava dome(s) ·Elevation: 901 m ·Last eruption: -3850 ·United States
  • Redoubt
    Distance: 163 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·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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