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M1.0 Depth: 19.7 km

M1.0 Earthquake near 65 km NW of Karluk, Alaska (United States)

UTC time: 2026-03-20 10:37:57 UTC Local time: —

About this earthquake

A magnitude M1.0 earthquake was recorded near 65 km NW of Karluk, Alaska (United States) on March 20, 2026 at 10:37 UTC. The hypocenter lay relatively close to the surface at around 20 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: over the past 24 hours, QuakeMap24 logged 179 earthquakes, the strongest at M3.0.

Details

Magnitude
M1.0
Depth
19.7 km
UTC time
2026-03-20 10:37:57 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
58.02300, -155.16700
Temperature
-21.8°C

Map

Depth profile

Depth profile Depth: 19.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 19.7 km
Shallow
19.7 km
19.7 km — deeper than the regional average (15.8 km)
Regional average: 15.8 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

  • Mageik
    Distance: 20 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Martin
    Distance: 20 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Alaska Peninsula Arc at 155.4°W
    Distance: 22 km ·Lava dome ·Elevation: 402 m ·United States
  • Trident
    Distance: 24 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Novarupta
    Distance: 27 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States
  • Katmai
    Distance: 31 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·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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