2.5

M2.5 Earthquake 79 km SW of Adak, Alaska — October 16, 2026

2026-10-16 22:05:53 UTC (5 days ago) · approx. 10:05 AM UTC-12 local

MagnitudeM2.5(ml)
Time22:05 UTC≈ 10:05 AM UTC-12
Depth20.4 kmshallow crustal
Coordinates51.405°, -177.509°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 51.41°, -177.51°

Earthquake Details

Magnitude
2.5 ml
Depth
20.4 km
shallow crustal
Location
51.4050°N
-177.5090°E

Technical Information

Event ID
aka2026unqnhx
Event Type
earthquake
Status
✓ Reviewed
Significance
96
Stations Used
21
Azimuthal Gap
222.0°
Min Station Distance
0.400°
RMS Residual
0.30 sec
Last Updated
2026-10-21 19:27:06 UTC

Nearby Earthquakes (Last 7 Days)

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3.1
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3.2
63 km SW of Adak, Alaska
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4.2
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2.8
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3.0
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3.3
63 km SW of Adak, Alaska
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2.5
80 km S of Adak, Alaska
3 days ago · 28.2 km deep
2.7
58 km SW of Adak, Alaska
3 days ago · 16.0 km deep

Actions

View on USGSDid You Feel It?

Location

Alaska
View all Alaska earthquakes

Understanding This Data

Magnitude 2.5 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: aka2026unqnhx). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, October 16, 2026). M2.5 Earthquake 79 km SW of Adak, Alaska — October 16, 2026. Retrieved October 21, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026unqnhx/