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M4.2 Earthquake near 134 km SSE of Old Harbor, Alaska

UTC time: 2025-09-01 19:09:51 UTC Local time: —
Magnitude
M4.2
Depth
11.4 km
Source
USGS

134 km SSE of Old Harbor, Alaska

Map

About this earthquake

A magnitude M4.2 earthquake was recorded near 134 km SSE of Old Harbor, Alaska on September 1, 2025 at 19:09 UTC. With a focal depth of about 11 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by USGS.

Details

ID
794e5b178fad7bf2b835f70f72a814666bad4ef6
Magnitude
M4.2
Depth
11.4 km
UTC time
2025-09-01 19:09:51 UTC
Local time
—
Country
—
Source
usgs
Coordinates
56.18600, -152.13020
Temperature
14.6°C

Depth profile

Depth profile Depth: 11.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11.4 km
Shallow
11.4 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

  • Alaska Peninsula Arc at 155.4°W
    Distance: 273 km ·Lava dome ·Elevation: 402 m ·United States
  • Steller
    Distance: 284 km ·Stratovolcano ·Elevation: 2'279 m ·United States
  • Snowy Mountain
    Distance: 284 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·United States
  • Denison
    Distance: 285 km ·Stratovolcano ·Elevation: 2'287 m ·United States
  • Kukak
    Distance: 285 km ·Stratovolcano ·Elevation: 2'043 m ·United States
  • Katmai
    Distance: 288 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·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)
502
Country (24h)
—
—
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