Back to map
M0.4 Depth: 1.9 km

M0.4 Earthquake near Lake and Peninsula Borough, Alaska (United States)

UTC time: 2026-08-18 21:17:22 UTC Local time: —

About this earthquake

On August 18, 2026 at 21:17 UTC, a magnitude M0.4 earthquake occurred near Lake and Peninsula Borough, Alaska (United States). With a focal depth of about 2 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 228 earthquakes, the strongest at M3.5.

Map

Depth profile

Depth profile Depth: 1.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1.9 km
Shallow
1.9 km
1.9 km — shallower 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

Volcanoes nearby

  • Martin
    Distance: 7 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Mageik
    Distance: 8 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Novarupta
    Distance: 12 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States
  • Trident
    Distance: 15 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Griggs
    Distance: 20 km ·Stratovolcano ·Elevation: 2'317 m ·Last eruption: -1790 ·United States
  • Katmai
    Distance: 24 km ·Stratovolcano ·Elevation: 2'047 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