Back to map
M4.0 Depth: 102.4 km

M4.0 Earthquake near 43 km SSE of Halibut Cove, Alaska (United States)

UTC time: 2025-07-16 21:12:34 UTC Local time: —

About this earthquake

On July 16, 2025 at 21:12 UTC, a magnitude M4.0 earthquake occurred near 43 km SSE of Halibut Cove, Alaska (United States). The earthquake originated at an intermediate depth of about 102 km. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The data is provided by USGS and cross-checked across seismological networks. United States: 209 earthquakes were recorded in the past 24 hours, the strongest reaching M4.7.

Details

Magnitude
M4.0
Depth
102.4 km
UTC time
2025-07-16 21:12:34 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
59.23680, -150.92750
Temperature
12.2°C

Map

Depth profile

Depth profile Depth: 102.4 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 102.4 km
Intermediate
102.4 km
102.4 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: 143 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Iliamna
    Distance: 150 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Douglas
    Distance: 155 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Fourpeaked
    Distance: 165 km ·Stratovolcano ·Elevation: 2'105 m ·Last eruption: 2006 ·United States
  • Redoubt
    Distance: 172 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Kaguyak
    Distance: 191 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.

Share