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M1.6 Depth: 51.3 km

M1.6 Earthquake near 16 km S of Tyonek, Alaska (United States)

UTC time: 2025-10-06 00:39:40 UTC Local time: —

About this earthquake

On October 6, 2025 at 00:39 UTC, a magnitude M1.6 earthquake occurred near 16 km S of Tyonek, Alaska (United States). With a focal depth of about 51 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: over the past 24 hours, QuakeMap24 logged 168 earthquakes, the strongest at M4.1.

Details

Magnitude
M1.6
Depth
51.3 km
UTC time
2025-10-06 00:39:40 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
60.91660, -151.11990
Temperature
9.4°C

Map

Depth profile

Depth profile Depth: 51.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 51.3 km
Shallow
51.3 km
51.3 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: 74 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 100 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Hayes
    Distance: 106 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Iliamna
    Distance: 146 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 215 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 266 km ·Stratovolcano ·Elevation: 2'140 m ·United States

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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