Magnitude
M3.4
- Depth
- 25.8 km
- Source
- USGS
100 km S of Adak, Alaska
M3.4 Earthquake near 100 km S of Adak, Alaska
Map
About this earthquake
On September 28, 2025 at 20:31 UTC, a magnitude M3.4 earthquake occurred near 100 km S of Adak, Alaska. With a focal depth of about 26 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are often felt but rarely cause damage.
The data is provided by USGS and cross-checked across seismological networks.
Details
ID
0a6d243ca9d42ad48261f17cf78270e194bcace9
Magnitude
M3.4
Depth
25.8 km
UTC time
2025-09-28 20:31:17 UTC
Local time
—
Country
—
Source
usgs
Coordinates
50.98700,
-176.89310
Temperature
10.4°C
Depth profile
Shallow
25.8 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
-
Great Sitkin WATCH · ORANGE
No unambiguous area assignment
Context for this earthquake
This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.
Earthquake overviewStats (last 24h)
Global (24h)
458
Country (24h)
—
—
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