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M1.8 Depth: 160.8 km

M1.8 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-07-20 00:28:38 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on July 20, 2026 at 00:28 UTC. At around 161 km, the focal depth places this among intermediate-depth events. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 160 earthquakes were recorded in the past 24 hours, the strongest reaching M3.4.

Map

Depth profile

Depth profile Depth: 160.8 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 160.8 km
Intermediate
160.8 km
160.8 km — deeper than the regional average (15.6 km)
Regional average: 15.6 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

  • Hayes
    Distance: 105 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 144 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 233 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Buzzard Creek
    Distance: 269 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Iliamna
    Distance: 284 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 360 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States

Historic earthquake map · United States

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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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