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M1.0 Depth: 19.4 km

M1.0 Earthquake near Lake and Peninsula Borough, Alaska (United States)

UTC time: 2026-08-28 03:18:21 UTC Local time: —

About this earthquake

On August 28, 2026 at 03:18 UTC, a magnitude M1.0 earthquake occurred near Lake and Peninsula Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 19 km, increasing how strongly it was felt. 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: 192 earthquakes were recorded in the past 24 hours, the strongest reaching M4.4.

Map

Depth profile

Depth profile Depth: 19.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 19.4 km
Shallow
19.4 km
19.4 km — deeper than the regional average (15.3 km)
Regional average: 15.3 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

  • Alaska Peninsula Arc at 155.4°W
    Distance: 27 km ·Lava dome ·Elevation: 402 m ·United States
  • Ugashik-Peulik
    Distance: 33 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
  • Ukinrek Maars
    Distance: 39 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States
  • Martin
    Distance: 44 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Mageik
    Distance: 50 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Novarupta
    Distance: 59 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.

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