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M4.3 Depth: 62.7 km

M4.3 Earthquake near 121 km E of Chignik, Alaska (United States)

UTC time: 2025-11-23 12:53:52 UTC Local time: —

About this earthquake

On November 23, 2025 at 12:53 UTC, a magnitude M4.3 earthquake occurred near 121 km E of Chignik, Alaska (United States). With a focal depth of about 63 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 192 earthquakes, the strongest at M5.8.

Details

Magnitude
M4.3
Depth
62.7 km
UTC time
2025-11-23 12:53:52 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
56.25330, -156.45170
Temperature
1.2°C

Map

Depth profile

Depth profile Depth: 62.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 62.7 km
Shallow
62.7 km
62.7 km — deeper than the regional average (15.5 km)
Regional average: 15.5 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

  • Yantarni
    Distance: 96 km ·Stratovolcano ·Elevation: 1'345 m ·Last eruption: -800 ·United States
  • Chiginagak
    Distance: 103 km ·Stratovolcano ·Elevation: 2'221 m ·Last eruption: 1998 ·United States
  • Kialagvik
    Distance: 107 km ·Stratovolcano ·Elevation: 1'677 m ·United States
  • Aniakchak
    Distance: 126 km ·Caldera ·Elevation: 1'341 m ·Last eruption: 1931 ·United States
  • Black Peak
    Distance: 147 km ·Stratovolcano ·Elevation: 1'032 m ·Last eruption: -1900 ·United States
  • Ugashik-Peulik
    Distance: 167 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·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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