Back to map
United States · Alaska

M1.6 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-10-23 16:16:51 UTC Local time: —
Magnitude
M1.6
Depth
57.1 km
Source
USGS

Alaska · Matanuska-Susitna Borough

Country overview

Map

About this earthquake

On October 23, 2026 at 16:16 UTC, a magnitude M1.6 earthquake occurred near Matanuska-Susitna Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 57 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: 182 earthquakes were recorded in the past 24 hours, the strongest reaching M4.2.

Depth profile

Depth profile Depth: 57.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 57.1 km
Shallow
57.1 km
57.1 km — deeper than the regional average (15.3 km)
Regional average: 15.3 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

  • Hayes
    Distance: 107 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 118 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 202 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 255 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Buzzard Creek
    Distance: 257 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Augustine
    Distance: 329 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States

Alaska

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 4,148 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