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United States · Alaska

M1.8 Earthquake near Kenai Peninsula Borough, Alaska (United States)

UTC time: 2026-09-18 06:43:00 UTC Local time: —
Magnitude
M1.8
Depth
141.2 km
Source
USGS

Alaska · Kenai Peninsula Borough

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About this earthquake

A magnitude M1.8 earthquake was recorded near Kenai Peninsula Borough, Alaska (United States) on September 18, 2026 at 06:43 UTC. The earthquake originated at an intermediate depth of about 141 km. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 228 earthquakes, the strongest at M4.8.

Depth profile

Depth profile Depth: 141.2 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 141.2 km
Intermediate
141.2 km
141.2 km — deeper than the regional average (15.2 km)
Regional average: 15.2 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

  • Iliamna
    Distance: 24 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 57 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Redoubt
    Distance: 77 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Douglas
    Distance: 113 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Fourpeaked
    Distance: 124 km ·Stratovolcano ·Elevation: 2'105 m ·Last eruption: 2006 ·United States
  • Kaguyak
    Distance: 145 km ·Lava dome(s) ·Elevation: 901 m ·Last eruption: -3850 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Pedro Bay AirportUnited States · PDB · 4K0
    42.8 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-19

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

19 Sep 2025 – 19 Sep 2026 · M ≥ 2.0 · 4,105 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

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Country statistics · United States

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

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