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United States · Alaska

M1.7 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-09-11 15:00:43 UTC Local time: —

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About this earthquake

On September 11, 2026 at 15:00 UTC, a magnitude M1.7 earthquake occurred near Unorganized Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 12 km, increasing how strongly it was felt. 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 236 earthquakes, the strongest at M5.4.

Depth profile

Depth profile Depth: 12.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.3 km
Shallow
12.3 km
12.3 km — close to 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

  • Wrangell
    Distance: 254 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Spurr
    Distance: 287 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 299 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Hayes
    Distance: 310 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Churchill
    Distance: 321 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Iliamna
    Distance: 322 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Chenega Bay AirportUnited States · NCN · PFCB
    49.3 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-11

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

11 Sep 2025 – 11 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

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

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