NOAA NTWC
Tsunami situation after M6.3: 45 miles NE of Amukta Pass, Alaska
Information
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Key facts
- Magnitude
- M6.3
- Depth · INGV
- 99.2 km
- Event time
- Sep 17, 2026, 2:19 PM UTC
- First bulletin
- Sep 17, 2026, 2:23 PM UTC
- Latest bulletin
- Sep 17, 2026, 2:23 PM UTC
- Bulletins
- 1
Situation map
Official alert areas are not modelled inundation zones. The source country identifies the earthquake, not necessarily an affected coastline. Historical events and monitoring stations can be toggled separately.
Arrival times at coastal locations
The warning centre published no arrival times for coastal locations for this bulletin.
Measured waves at tide gauges
Own analysis, not officialNo tide gauge analysis is available for this event (only for stronger earthquakes or alert levels).
Bulletin timeline
Area reported by source
45 miles NE of Amukta Pass, Alaska
- Information NOAA NTWC
Valid until:
Original authority text
Original source language; no automatic translation.
This is a Tsunami Information Statement.
This is a Tsunami Information Statement. - Event details: Preliminary magnitude 6.3 (Mwp) earthquake / Lat: 52.810, Lon: -171.341 at 2026-09-17T14:19:53 UTC An information statement indicates that an earthquake has occurred, but does not pose a tsunami threat, or that a tsunami warning, advisory, or watch has been issued for another section of the ocean.
An earthquake has occurred; a tsunami is not expected. This will be the only U.S. National Tsunami Warning Center message issued for this event unless additional information becomes available. The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey (earthquake.usgs.gov) or the appropriate regional seismic network.
Official source ↗
Historical tsunamis in the region
- Unimak Island, Ak United States · Apr 1, 1946, 12:29 PM UTC · 42.0 m · 572 km
- Andreanof Islands, Ak United States · Mar 9, 1957, 2:22 PM UTC · 32.0 m · 327 km
- Sand Point, Ak United States · Jul 16, 2023, 6:48 AM UTC · 0.15 m · 721 km
- Shumagin Islands, Ak United States · Aug 6, 1788 · 88.0 m · 719 km
- Rat Islands, Aleutian Islands, Ak United States · Feb 4, 1965, 5:01 AM UTC · 10.7 m · 701 km
- Fox Islands, Aleutian Islands, Ak United States · Aug 23, 1872, 6:06 PM UTC · 1.30 m · 204 km