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United States · Alaska

M1.5 Earthquake near Lake and Peninsula Borough, Alaska (United States)

UTC time: 2026-09-18 15:50:21 UTC Local time: —
Magnitude
M1.5
Depth
135.4 km
Source
USGS

Alaska · Lake and Peninsula Borough

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About this earthquake

On September 18, 2026 at 15:50 UTC, a magnitude M1.5 earthquake occurred near Lake and Peninsula Borough, Alaska (United States). At around 135 km, the focal depth places this among intermediate-depth events. 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: 162 earthquakes were recorded in the past 24 hours, the strongest reaching M4.8.

Depth profile

Depth profile Depth: 135.4 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 135.4 km
Intermediate
135.4 km
135.4 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

  • Griggs
    Distance: 32 km ·Stratovolcano ·Elevation: 2'317 m ·Last eruption: -1790 ·United States
  • Snowy Mountain
    Distance: 38 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·United States
  • Denison
    Distance: 40 km ·Stratovolcano ·Elevation: 2'287 m ·United States
  • Katmai
    Distance: 40 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States
  • Steller
    Distance: 42 km ·Stratovolcano ·Elevation: 2'279 m ·United States
  • Kukak
    Distance: 42 km ·Stratovolcano ·Elevation: 2'043 m ·United States

Alaska

Context for this earthquake

18 Sep 2025 – 18 Sep 2026 · M ≥ 2.0 · 4,101 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

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

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