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M1.8 Depth: 19.6 km

M1.8 Earthquake near 15 km SE of Eureka Roadhouse, Alaska (United States)

UTC time: 2025-12-20 20:21:46 UTC Local time: —

About this earthquake

On December 20, 2025 at 20:21 UTC, a magnitude M1.8 earthquake occurred near 15 km SE of Eureka Roadhouse, Alaska (United States). With a focal depth of about 20 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: 233 earthquakes were recorded in the past 24 hours, the strongest reaching M6.0.

Details

Magnitude
M1.8
Depth
19.6 km
UTC time
2025-12-20 20:21:46 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
61.83400, -146.96900
Temperature
-27.9°C

Map

Depth profile

Depth profile Depth: 19.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 19.6 km
Shallow
19.6 km
19.6 km — deeper 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

  • Wrangell
    Distance: 156 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Buzzard Creek
    Distance: 259 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Churchill
    Distance: 280 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Spurr
    Distance: 286 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 287 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 344 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·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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