2.8

M2.8 Earthquake 12 km SW of Ugashik, Alaska — October 21, 2026

2026-10-21 12:05:08 UTC (4 hours ago) · approx. 1:05 AM UTC-11 local

MagnitudeM2.8(ml)
Time12:05 UTC≈ 1:05 AM UTC-11
Depth111.2 kmintermediate depth
Coordinates57.441°, -157.552°
Felt byNo felt reports
StatusAutomatic (preliminary)
Map showing earthquake epicenter at 57.44°, -157.55°

Earthquake Details

Magnitude
2.8 ml
Depth
111.2 km
intermediate depth
Location
57.4410°N
-157.5520°E

Technical Information

Event ID
aka2026uwcphn
Event Type
earthquake
Status
Automatic
Significance
121
Stations Used
49
Azimuthal Gap
161.0°
Min Station Distance
0.700°
RMS Residual
0.80 sec
Last Updated
2026-10-21 12:09:31 UTC

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59 km ESE of King Salmon, Alaska
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2.7
120 km SE of Ugashik, Alaska
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46 km W of Nanwalek, Alaska
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Actions

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Location

Alaska
View all Alaska earthquakes

Understanding This Data

Magnitude 2.8 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: aka2026uwcphn). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, October 21, 2026). M2.8 Earthquake 12 km SW of Ugashik, Alaska — October 21, 2026. Retrieved October 21, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026uwcphn/