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M4.5 Depth: 40.7 km

M4.5 Earthquake near Rat Islands, Aleutian Islands, Alaska

UTC time: 2026-04-04 09:39:53 UTC Local time: —

About this earthquake

A magnitude M4.5 earthquake was recorded near Rat Islands, Aleutian Islands, Alaska on April 4, 2026 at 09:39 UTC. The hypocenter lay relatively close to the surface at around 41 km, increasing how strongly it was felt. 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.

Details

Magnitude
M4.5
Depth
40.7 km
UTC time
2026-04-04 09:39:53 UTC
Local time
—
Country
—
Source
usgs
Coordinates
51.25380, 178.79540
Temperature
4.2°C

Map

Depth profile

Depth profile Depth: 40.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 40.7 km
Shallow
40.7 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

  • Little Sitkin
    Distance: 79 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Davidof
    Distance: 86 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Semisopochnoi
    Distance: 93 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States
  • Segula
    Distance: 96 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Kiska
    Distance: 125 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Buldir
    Distance: 233 km ·Stratovolcano ·Elevation: 656 m ·United States

Stats (last 24h)

Global (24h)
569
Country (24h)
—
—
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