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M1.8 Depth: 91.9 km

M1.8 Earthquake near 34 km WNW of Happy Valley, Alaska (United States)

UTC time: 2025-07-31 01:17:07 UTC Local time: —

About this earthquake

On July 31, 2025 at 01:17 UTC, a magnitude M1.8 earthquake occurred near 34 km WNW of Happy Valley, Alaska (United States). The earthquake originated at an intermediate depth of about 92 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 249 earthquakes, the strongest at M4.1.

Details

Magnitude
M1.8
Depth
91.9 km
UTC time
2025-07-31 01:17:07 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
60.07450, -152.30480
Temperature
16.5°C

Map

Depth profile

Depth profile Depth: 91.9 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 91.9 km
Intermediate
91.9 km
91.9 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: 44 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Redoubt
    Distance: 52 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Augustine
    Distance: 101 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Spurr
    Distance: 136 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Douglas
    Distance: 153 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Fourpeaked
    Distance: 164 km ·Stratovolcano ·Elevation: 2'105 m ·Last eruption: 2006 ·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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