Back to map
United States · Alaska

M2.1 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-27 03:19:29 UTC Local time: —
Magnitude
M2.1
Depth
5.0 km
Source
USGS

Alaska · Matanuska-Susitna Borough

Country overview

Map

About this earthquake

A magnitude M2.1 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on September 27, 2026 at 03:19 UTC. The hypocenter lay relatively close to the surface at around 5 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 133 earthquakes, the strongest at M3.1.

Depth profile

Depth profile Depth: 5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 5 km
Shallow
5 km
5 km — shallower than 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

  • Buzzard Creek
    Distance: 160 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Hayes
    Distance: 194 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 214 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Wrangell
    Distance: 290 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Redoubt
    Distance: 302 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 354 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States

Alaska

Context for this earthquake

27 Sep 2025 – 27 Sep 2026 · M ≥ 2.0 · 4,143 Catalogue entries

Of 4,142 other entries for this area and period, 2,900 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

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