Quakes · tsunami
256 km ese of chiniak, alaska
USGS-US2000CNH7
- issued
- 2018-01-24 00:04Z
- status
- cancelled 2018-01-27 00:04Z
- self-cancels
- 2018-01-27 00:04Z
- authority
- USGS NEIC
- sea
- Gulf of Alaska
- position
- 56.546, -148.535
- source
- usgs · first seen 2026-09-03 15:13Z
Original warning text
256 KM ESE OF CHINIAK, ALASKA. 1. EARTHQUAKE MAGNITUDE 5.5 (MWW) IN 56.546N 148.535W, DEPTH 10 KM AT 240004Z JAN 18. 2. A TSUNAMI MESSAGE WAS ISSUED FOR THIS EVENT. FOLLOW THE TSUNAMI WARNING CENTRES. 3. USGS EVENT US2000CNH7. https://earthquake.usgs.gov/earthquakes/eventpage/us2000cnh7
This area · earthquake & tsunami bulletins
18 within 180 nm since 1998 · 0 in the last 12 months · 0 in force now
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05
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15
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25
- 133 km se of old harbor, alaska2025-09-01
- 276 km ese of chiniak, alaska2018-05-08
- 228 km se of chiniak, alaska2018-01-23
- An earthquake occurred at 230932Z jan with a preliminary magnitude of 8.0, in 56-00N 149-12W2018-01-23
- 261 km se of chiniak, alaska2018-01-23
- 136 km se of old harbor, alaska2009-05-16
Season · when earthquake & tsunami bulletins happen here
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month of issue, all years in the archive
Timeline · 2 messages since 2018-01-23 · closed 2018-01-27
- 228 km se of chiniak, alaska2018-01-23 → 2018-01-26
- 256 km ese of chiniak, alaska this message2018-01-24 → 2018-01-27
joined by proximity
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
5 earthquake & tsunami bulletins in force · see all
Quakes
Undersea earthquakes of magnitude 5.5 and above (USGS) and the tsunami bulletins NAVAREA coordinators relay. All current earthquake & tsunami bulletins →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.