Severe Earthquake ● Closed

M6.4 Earthquake — 163 km WSW of Nikolski, Alaska

Event time: Last updated: Sep 26, 2026
Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

Magnitude 6.4 earthquake 163 km WSW of Nikolski, Alaska at a depth of 114.8 km, recorded by the U.S. Geological Survey.

Measurements

MagnitudeM6.4
Depth114.8 km
Coordinates52.5440, -171.1860
Region163 km WSW of Nikolski, Alaska
Felt Reports3
Tsunami Flag1

Measured by

Earthquake data courtesy of the U.S. Geological Survey

This is a scientific measurement of an event that has already happened. It is not a warning, and it does not tell you what to do.

Not rated by source. US Geological Survey does not publish a severity for this; the level shown is our own classification.

View original report

This event as JSON · API and licence

Source updated 32 days ago (Sep 17, 2026 14:39 UTC) · we last heard from US Geological Survey 4 seconds ago

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General safety information

No authority has issued instructions for this event. The guidance below is general background reading, not a response to it.

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Nearby & related events

Great Sitkin — Volcano Alert Level WATCH Severe Volcanic Activity United States active via USGS_VOLCANO 3 hr ago M3.6 Earthquake — 115 km SSW of Nikolski, Alaska Minor Earthquake active via USGS 11 hr ago M4.0 Earthquake — Fox Islands, Aleutian Islands Minor Earthquake active via EMSC 18 hr ago M3.8 Earthquake — 86 km SSW of Unalaska, Alaska Minor Earthquake active via USGS 1 day ago M3.9 Earthquake — 90 km SSW of Unalaska, Alaska Minor Earthquake active via USGS 1 day ago

Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.