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M1.0 Depth: 3.1 km

M1.0 Earthquake near 77 km WNW of Tyonek, Alaska (United States)

UTC time: 2025-07-20 00:34:48 UTC Local time: —

About this earthquake

On July 20, 2025 at 00:34 UTC, a magnitude M1.0 earthquake occurred near 77 km WNW of Tyonek, Alaska (United States). The hypocenter lay relatively close to the surface at around 3 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 208 earthquakes were recorded in the past 24 hours, the strongest reaching M3.2.

Details

Magnitude
M1.0
Depth
3.1 km
UTC time
2025-07-20 00:34:48 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
61.28720, -152.50100
Temperature
6.4°C

Map

Depth profile

Depth profile Depth: 3.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 3.1 km
Shallow
3.1 km
3.1 km — shallower than the regional average (15.3 km)
Regional average: 15.3 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: 13 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 40 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 90 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 143 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 220 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 277 km ·Stratovolcano ·Elevation: 2'140 m ·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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