Back to map
M4.6 Depth: 55.7 km

M4.6 Earthquake near Kodiak Island Borough, Alaska (United States)

UTC time: 2026-08-17 20:35:10 UTC Local time: —

About this earthquake

On August 17, 2026 at 20:35 UTC, a magnitude M4.6 earthquake occurred near Kodiak Island Borough, Alaska (United States). With a focal depth of about 56 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 176 earthquakes, the strongest at M4.8.

Map

Depth profile

Depth profile Depth: 55.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 55.7 km
Shallow
55.7 km
55.7 km — deeper than the regional average (15.4 km)
Regional average: 15.4 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

Estimated impact

5 Felt reports · max reported intensity 2.9

Ground shaking

IV
Light · Intensity (MMI) IV
Felt by many, no damage.

Tectonic context

Located on the North America Plate.
Near the boundary North America ↔ Pacific · about 209 km away

Volcanoes nearby

  • Alaska Peninsula Arc at 155.4°W
    Distance: 74 km ·Lava dome ·Elevation: 402 m ·United States
  • Ugashik-Peulik
    Distance: 103 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
  • Martin
    Distance: 104 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Mageik
    Distance: 105 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Trident
    Distance: 108 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Novarupta
    Distance: 112 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·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.

Share