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United States · Alaska

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

UTC time: 2026-09-21 15:30:44 UTC Local time: —
Magnitude
M1.8
Depth
73.0 km
Source
USGS

Alaska · Kenai Peninsula Borough

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About this earthquake

On September 21, 2026 at 15:30 UTC, a magnitude M1.8 earthquake occurred near Kenai Peninsula Borough, Alaska (United States). At around 73 km, the focal depth places this among intermediate-depth events. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 184 earthquakes, the strongest at M3.0.

Depth profile

Depth profile Depth: 73 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 73 km
Intermediate
73 km
73 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: 62 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 77 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Redoubt
    Distance: 93 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Douglas
    Distance: 119 km ·Stratovolcano ·Elevation: 2'140 m ·United States
  • Fourpeaked
    Distance: 131 km ·Stratovolcano ·Elevation: 2'105 m ·Last eruption: 2006 ·United States
  • Kaguyak
    Distance: 158 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

  • Seldovia AirportUnited States · SOV · PASO
    39.8 kmStraight-line distance
  • Nanwalek AirportUnited States · KEB · KEB
    40.8 kmStraight-line distance
  • Homer AirportUnited States · HOM · PAHO
    42.0 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-21

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

21 Sep 2025 – 21 Sep 2026 · M ≥ 2.0 · 4,119 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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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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