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M4.5 Depth: 39.9 km

M4.5 Earthquake near SOUTHERN ALASKA (United States)

UTC time: 2025-04-23 00:24:49 UTC Local time: —

About this earthquake

A magnitude M4.5 earthquake was recorded near SOUTHERN ALASKA (United States) on April 23, 2025 at 00:24 UTC. With a focal depth of about 40 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by EMSC. United States: 177 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

Magnitude
M4.5
Depth
39.9 km
UTC time
2025-04-23 00:24:49 UTC
Local time
—
Country
United States
City
Alaska
Source
emsc
Coordinates
61.79960, -150.08870
Temperature
7.6°C

Map

Depth profile

Depth profile Depth: 39.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 39.9 km
Shallow
39.9 km
39.9 km — deeper than the regional average (15.9 km)
Regional average: 15.9 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

  • Hayes
    Distance: 124 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 127 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 204 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 255 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Buzzard Creek
    Distance: 265 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Wrangell
    Distance: 319 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·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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