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M3.9 Earthquake near Andreanof Islands

UTC time: 2026-04-20 17:17:05 UTC Local time: —
Magnitude
M3.9
Depth
4.0 km
Source
ISC

Andreanof Islands

Map

About this earthquake

A magnitude M3.9 earthquake was recorded near Andreanof Islands on April 20, 2026 at 17:17 UTC. The hypocenter lay relatively close to the surface at around 4 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by ISC and cross-checked across seismological networks.

Details

ID
358051f97875d826635477d5cc69c0797700b446
Magnitude
M3.9
Depth
4.0 km
UTC time
2026-04-20 17:17:05 UTC
Local time
—
Country
—
Source
isc
Coordinates
50.98900, -178.38800

Depth profile

Depth profile Depth: 4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 4 km
Shallow
4 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

  • Gareloi
    Distance: 93 km ·Stratovolcano ·Elevation: 1'573 m ·Last eruption: 1989 ·United States
  • Tanaga
    Distance: 101 km ·Stratovolcano(es) ·Elevation: 1'806 m ·Last eruption: 1914 ·United States
  • Takawangha
    Distance: 102 km ·Stratovolcano ·Elevation: 1'449 m ·Last eruption: 1550 ·United States
  • Bobrof
    Distance: 122 km ·Stratovolcano ·Elevation: 738 m ·United States
  • Kanaga
    Distance: 134 km ·Stratovolcano ·Elevation: 1'307 m ·Last eruption: 2023 ·United States
  • Moffett
    Distance: 156 km ·Stratovolcano ·Elevation: 1'196 m ·Last eruption: -1600 ·United States

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Stats (last 24h)

Global (24h)
620
Country (24h)
—
—
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