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United States · Alaska

M1.9 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-17 13:53:22 UTC Local time: —
Magnitude
M1.9
Depth
29.9 km
Source
USGS

Alaska · Matanuska-Susitna Borough

Country overview

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About this earthquake

A magnitude M1.9 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on September 17, 2026 at 13:53 UTC. With a focal depth of about 30 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 170 earthquakes were recorded in the past 24 hours, the strongest reaching M6.4.

Depth profile

Depth profile Depth: 29.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 29.9 km
Shallow
29.9 km
29.9 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: 123 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 128 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 189 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 237 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Buzzard Creek
    Distance: 291 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Augustine
    Distance: 307 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Merrill FieldUnited States · MRI · PAMR
    37.6 kmStraight-line distance
  • Ted Stevens Anchorage International AirportUnited States · ANC · PANC
    40.4 kmStraight-line distance
  • Wasilla Creek AirparkUnited States · 05AK
    45.3 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-17

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

17 Sep 2025 – 17 Sep 2026 · M ≥ 2.0 · 4,098 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.

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