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M4.3 Earthquake near 188 km WNW of Attu Station, Alaska

UTC time: 2025-10-18 13:07:50 UTC Local time: —
Magnitude
M4.3
Depth
35.0 km
Source
USGS

188 km WNW of Attu Station, Alaska

Map

About this earthquake

A magnitude M4.3 earthquake was recorded near 188 km WNW of Attu Station, Alaska on October 18, 2025 at 13:07 UTC. The hypocenter lay relatively close to the surface at around 35 km, increasing how strongly it was felt. Tremors of this size are distinctly felt and can occasionally cause light damage.

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

Details

ID
57f02e09b36dee73abde1129668fc885fb45e243
Magnitude
M4.3
Depth
35.0 km
UTC time
2025-10-18 13:07:50 UTC
Local time
—
Country
—
Source
usgs
Coordinates
53.43110, 170.53450
Temperature
5.4°C

Depth profile

Depth profile Depth: 35 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 35 km
Shallow
35 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

  • Piip
    Distance: 303 km ·Stratovolcano ·Elevation: -300 m ·Last eruption: -5050 ·Russia
  • Buldir
    Distance: 380 km ·Stratovolcano ·Elevation: 656 m ·United States
  • Kiska
    Distance: 498 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·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)
642
Country (24h)
—
—
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