Back to map
United States · Alaska

M3.9 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-10-16 14:49:42 UTC Local time: —
Magnitude
M3.9
Depth
66.8 km
Source
USGS

Alaska · Matanuska-Susitna Borough

Country overview

Map

About this earthquake

A magnitude M3.9 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on October 16, 2026 at 14:49 UTC. The hypocenter lay relatively close to the surface at around 67 km, increasing how strongly it was felt. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by USGS. United States: 129 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Depth profile

Depth profile Depth: 66.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 66.8 km
Shallow
66.8 km
66.8 km — deeper 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

  • Spurr
    Distance: 134 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 142 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 195 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 241 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Buzzard Creek
    Distance: 296 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Wrangell
    Distance: 308 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Merrill FieldUnited States · MRI · PAMR
    28.9 kmStraight-line distance
  • Ted Stevens Anchorage International AirportUnited States · ANC · PANC
    34.6 kmStraight-line distance
  • Wasilla Creek AirparkUnited States · 05AK
    37.5 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-05

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

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