Back to map

M2.5 Earthquake near 46 km S of Old Harbor, Alaska

UTC time: 2025-09-17 17:28:43 UTC Local time: —
Magnitude
M2.5
Depth
114.3 km
Source
USGS

46 km S of Old Harbor, Alaska

Map

About this earthquake

On September 17, 2025 at 17:28 UTC, a magnitude M2.5 earthquake occurred near 46 km S of Old Harbor, Alaska. The earthquake originated at an intermediate depth of about 114 km. Events of this size typically go unnoticed.

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

Details

ID
cd13bfdd974cbdae8f595a00b902f7bb34dd46e9
Magnitude
M2.5
Depth
114.3 km
UTC time
2025-09-17 17:28:43 UTC
Local time
—
Country
—
Source
usgs
Coordinates
56.78450, -153.20900
Temperature
11.4°C

Depth profile

Depth profile Depth: 114.3 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 114.3 km
Intermediate
114.3 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Alaska Peninsula Arc at 155.4°W
    Distance: 179 km ·Lava dome ·Elevation: 402 m ·United States
  • Snowy Mountain
    Distance: 194 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·United States
  • Steller
    Distance: 196 km ·Stratovolcano ·Elevation: 2'279 m ·United States
  • Denison
    Distance: 196 km ·Stratovolcano ·Elevation: 2'287 m ·United States
  • Katmai
    Distance: 196 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States
  • Trident
    Distance: 197 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Old Harbor AirportUnited States · OLH
    48.4 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-07

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

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)
493
Country (24h)
—
—
Current earthquakes in
Magnitude Place Local time
No recent events available.

Share