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United States

M2.3 Earthquake near 54 km NNW of Chignik Lagoon, Alaska (United States)

UTC time: 2025-09-24 09:52:02 UTC Local time: —

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About this earthquake

A magnitude M2.3 earthquake was recorded near 54 km NNW of Chignik Lagoon, Alaska (United States) on September 24, 2025 at 09:52 UTC. With a focal depth of about 3 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 186 earthquakes, the strongest at M4.5.

Details

ID
829eb22fbc86e4fb443508da62b1aca04e7cdf09
Magnitude
M2.3
Depth
3.3 km
UTC time
2025-09-24 09:52:02 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
56.77840, -158.80090
Temperature
10.4°C

Depth profile

Depth profile Depth: 3.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 3.3 km
Shallow
3.3 km
3.3 km — shallower than the regional average (15.2 km)
Regional average: 15.2 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

  • Black Peak
    Distance: 25 km ·Stratovolcano ·Elevation: 1'032 m ·Last eruption: -1900 ·United States
  • Aniakchak
    Distance: 40 km ·Caldera ·Elevation: 1'341 m ·Last eruption: 1931 ·United States
  • Veniaminof
    Distance: 76 km ·Stratovolcano ·Elevation: 2'507 m ·Last eruption: 2021 ·United States
  • Yantarni
    Distance: 102 km ·Stratovolcano ·Elevation: 1'345 m ·Last eruption: -800 ·United States
  • Kupreanof
    Distance: 105 km ·Stratovolcano ·Elevation: 1'895 m ·United States
  • Chiginagak
    Distance: 117 km ·Stratovolcano ·Elevation: 2'221 m ·Last eruption: 1998 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Port Heiden AirportUnited States · PTH · PAPH
    22.5 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-11-02

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

Alaska

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 4,148 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · United States

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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