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M5.3 Depth: 75.0 km

M5.3 Earthquake near 29 km ESE of Unalaska, Alaska (United States)

UTC time: 2025-07-27 22:47:05 UTC Local time: —
M5.3 earthquake near Alaska on Jul 27, 2025 — map of epicenter and shaking intensity | QuakeMap24
M5.3 Earthquake near 29 km ESE of Unalaska, Alaska (United States) · 2025-07-27 22:47:05 UTC

About this earthquake

On July 27, 2025 at 22:47 UTC, a magnitude M5.3 earthquake occurred near 29 km ESE of Unalaska, Alaska (United States). The earthquake originated at an intermediate depth of about 75 km. Events of this size can cause damage near the epicenter.

The event was recorded by USGS. United States: 153 earthquakes were recorded in the past 24 hours, the strongest reaching M3.2.

Details

Magnitude
M5.3
Depth
75.0 km
UTC time
2025-07-27 22:47:05 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
53.74500, -166.13700
Temperature
12.4°C

Map

Depth profile

Depth profile Depth: 75 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 75 km
Intermediate
75 km
75 km — deeper than the regional average (15.8 km)
Regional average: 15.8 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Akutan
    Distance: 44 km ·Stratovolcano ·Elevation: 1'303 m ·Last eruption: 1992 ·United States
  • Makushin
    Distance: 54 km ·Stratovolcano ·Elevation: 1'800 m ·Last eruption: 1995 ·United States
  • Bogoslof
    Distance: 126 km ·Stratovolcano ·Elevation: 150 m ·Last eruption: 2017 ·United States
  • Westdahl
    Distance: 129 km ·Stratovolcano? ·Elevation: 1'563 m ·Last eruption: 1992 ·United States
  • Okmok
    Distance: 136 km ·Shield ·Elevation: 1'073 m ·Last eruption: 2008 ·United States
  • Fisher
    Distance: 150 km ·Stratovolcano ·Elevation: 1'112 m ·Last eruption: 1830 ·United States

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#4
Earlier events M≥418
Earlier events M≥58
Compared since2025-01-14

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M5.62025-01-26 22:39:15 UTC94.5 km M5.62025-01-26 22:39:13 UTC92.4 km86 km SSW of Unalaska, Alaska M5.52025-07-27 22:46:57 UTC36.7 kmFox Islands, Aleutian Islands M5.32025-05-23 02:30:40 UTC116.1 km M5.22025-05-23 02:30:40 UTC116.1 kmUNIMAK ISLAND REGION, ALASKA

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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