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M3.0 Depth: 49.5 km

M3.0 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-08-18 20:56:39 UTC Local time: —

About this earthquake

On August 18, 2026 at 20:56 UTC, a magnitude M3.0 earthquake occurred near Matanuska-Susitna Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 50 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: over the past 24 hours, QuakeMap24 logged 228 earthquakes, the strongest at M3.5.

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Depth profile

Depth profile Depth: 49.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 49.5 km
Shallow
49.5 km
49.5 km — deeper than the regional average (15.4 km)
Regional average: 15.4 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: 114 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 126 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 172 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 219 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 287 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Buzzard Creek
    Distance: 314 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·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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