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M2.3 Depth: 68.8 km

M2.3 Earthquake near 16 km SW of Tyonek, Alaska (United States)

UTC time: 2026-03-21 00:15:36 UTC Local time: —

About this earthquake

On March 21, 2026 at 00:15 UTC, a magnitude M2.3 earthquake occurred near 16 km SW of Tyonek, Alaska (United States). With a focal depth of about 69 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 179 earthquakes, the strongest at M3.0.

Details

Magnitude
M2.3
Depth
68.8 km
UTC time
2026-03-21 00:15:36 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
60.95300, -151.33100
Temperature
-3.5°C

Map

Depth profile

Depth profile Depth: 68.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 68.8 km
Shallow
68.8 km
68.8 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

  • Spurr
    Distance: 63 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 93 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Hayes
    Distance: 96 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Iliamna
    Distance: 141 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 212 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 264 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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