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United States · Alaska

M4.5 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-07-12 11:23:49 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis. How our reports are produced ↗

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About this earthquake

On July 12, 2026 at 11:23 UTC, a magnitude M4.5 earthquake occurred near Unorganized Borough, Alaska (United States). At around 95 km, the focal depth places this among intermediate-depth events. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The data is provided by USGS and cross-checked across seismological networks. United States: 163 earthquakes were recorded in the past 24 hours, the strongest reaching M3.5.

Depth profile

Depth profile Depth: 95.2 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 95.2 km
Intermediate
95.2 km
95.2 km — deeper than the regional average (15.3 km)
Regional average: 15.3 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Estimated impact

15 Felt reports · max reported intensity 3.1

Ground shaking

IV
Light · Intensity (MMI) IV
Felt by many, no damage.

Tectonic context

Located on the North America Plate.
Near the boundary North America ↔ Pacific · about 138 km away

Volcanoes nearby

  • Makushin
    Distance: 30 km ·Stratovolcano ·Elevation: 1'800 m ·Last eruption: 1995 ·United States
  • Akutan
    Distance: 72 km ·Stratovolcano ·Elevation: 1'303 m ·Last eruption: 1992 ·United States
  • Bogoslof
    Distance: 92 km ·Stratovolcano ·Elevation: 150 m ·Last eruption: 2017 ·United States
  • Okmok
    Distance: 97 km ·Shield ·Elevation: 1'073 m ·Last eruption: 2008 ·United States
  • Recheschnoi
    Distance: 133 km ·Stratovolcano ·Elevation: 1'984 m ·United States
  • Vsevidof
    Distance: 143 km ·Stratovolcano ·Elevation: 2'160 m ·Last eruption: 1878 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Tom Madsen (Dutch Harbor) AirportUnited States · DUT · PADU
    29.9 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-07

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

07 Sep 2025 – 07 Sep 2026 · M ≥ 3.0 · 653 Catalogue entries

Of 652 other entries for this area and period, 100 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

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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