Back to map
United States · Alaska

M3.9 Earthquake near Aleutians West Census Area, Alaska (United States)

UTC time: 2026-08-19 16:49:44 UTC Local time: —
Magnitude
M3.9
Depth
119.9 km
Source
USGS

Alaska · Aleutians West Census Area

Country overview

Map

About this earthquake

A magnitude M3.9 earthquake was recorded near Aleutians West Census Area, Alaska (United States) on August 19, 2026 at 16:49 UTC. At around 120 km, the focal depth places this among intermediate-depth events. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by USGS. United States: 185 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Depth profile

Depth profile Depth: 119.9 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 119.9 km
Intermediate
119.9 km
119.9 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

  • Little Sitkin
    Distance: 36 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Davidof
    Distance: 49 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Semisopochnoi
    Distance: 51 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States
  • Segula
    Distance: 63 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Kiska
    Distance: 100 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Buldir
    Distance: 217 km ·Stratovolcano ·Elevation: 656 m ·United States

Alaska

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 653 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

Open history map
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.

Share