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M1.9 Depth: 144.3 km

M1.9 Earthquake near 41 km E of Pedro Bay, Alaska (United States)

UTC time: 2025-08-09 20:38:17 UTC Local time: —

About this earthquake

On August 9, 2025 at 20:38 UTC, a magnitude M1.9 earthquake occurred near 41 km E of Pedro Bay, Alaska (United States). At around 144 km, the focal depth places this among intermediate-depth events. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 169 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

Magnitude
M1.9
Depth
144.3 km
UTC time
2025-08-09 20:38:17 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
59.85430, -153.38290
Temperature
8.9°C

Map

Depth profile

Depth profile Depth: 144.3 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 144.3 km
Intermediate
144.3 km
144.3 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

  • Iliamna
    Distance: 26 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 55 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Redoubt
    Distance: 79 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Douglas
    Distance: 111 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Fourpeaked
    Distance: 122 km ·Stratovolcano ·Elevation: 2'105 m ·Last eruption: 2006 ·United States
  • Kaguyak
    Distance: 143 km ·Lava dome(s) ·Elevation: 901 m ·Last eruption: -3850 ·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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