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M1.6 Depth: 10.5 km

M1.6 Earthquake near 3 km S of Salcha, Alaska (United States)

UTC time: 2025-12-28 04:42:15 UTC Local time: —

About this earthquake

On December 28, 2025 at 04:42 UTC, a magnitude M1.6 earthquake occurred near 3 km S of Salcha, Alaska (United States). The hypocenter lay relatively close to the surface at around 11 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 171 earthquakes, the strongest at M4.3.

Details

Magnitude
M1.6
Depth
10.5 km
UTC time
2025-12-28 04:42:15 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
64.49200, -146.90500
Temperature
-43.8°C

Map

Depth profile

Depth profile Depth: 10.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10.5 km
Shallow
10.5 km
10.5 km — shallower than the regional average (15.7 km)
Regional average: 15.7 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

  • Buzzard Creek
    Distance: 88 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Wrangell
    Distance: 312 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Hayes
    Distance: 421 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Churchill
    Distance: 433 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Spurr
    Distance: 446 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Fort Selkirk
    Distance: 500 km ·Volcanic field ·Elevation: 1'239 m ·Canada

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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