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M1.8 Depth: 65.8 km

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

UTC time: 2025-07-10 10:10:40 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near 8 km WSW of Happy Valley, Alaska (United States) on July 10, 2025 at 10:10 UTC. The hypocenter lay relatively close to the surface at around 66 km, increasing how strongly it was felt. 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: 212 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

Magnitude
M1.8
Depth
65.8 km
UTC time
2025-07-10 10:10:40 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
59.90580, -151.86470
Temperature
11.9°C

Map

Depth profile

Depth profile Depth: 65.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 65.8 km
Shallow
65.8 km
65.8 km — deeper than the regional average (15.3 km)
Regional average: 15.3 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Iliamna
    Distance: 70 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Redoubt
    Distance: 81 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Augustine
    Distance: 107 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 151 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Spurr
    Distance: 156 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Fourpeaked
    Distance: 163 km ·Stratovolcano ·Elevation: 2'105 m ·Last eruption: 2006 ·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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