Quakes · tsunami
72 km sse of atka, alaska
USGS-US10004X1W
- issued
- 2016-03-12 18:06Z
- status
- cancelled 2016-03-15 18:06Z
- self-cancels
- 2016-03-15 18:06Z
- authority
- USGS NEIC
- sea
- North Pacific Ocean
- position
- 51.565, -173.942
- source
- usgs · first seen 2026-09-03 15:13Z
Original warning text
72 KM SSE OF ATKA, ALASKA. 1. EARTHQUAKE MAGNITUDE 6.3 (MWW) IN 51.565N 173.942W, DEPTH 19 KM AT 121806Z MAR 16. 2. A TSUNAMI MESSAGE WAS ISSUED FOR THIS EVENT. FOLLOW THE TSUNAMI WARNING CENTRES. 3. USGS EVENT US10004X1W. https://earthquake.usgs.gov/earthquakes/eventpage/us10004x1w
This area · earthquake & tsunami bulletins
151 within 180 nm since 1997 · 8 in the last 12 months · 1 in force now
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- 84 km ssw of nikolski, alaska2026-09-03
- 103 km se of atka, alaska2026-07-26
- 172 km ene of atka, alaska2026-05-22
- 93 km sw of nikolski, alaska2026-02-23
- 96 km sw of nikolski, alaska2026-02-23
- 67 km ssw of adak, alaska2025-11-23
Season · when earthquake & tsunami bulletins happen here
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month of issue, all years in the archive
Timeline · 3 messages since 2016-03-12 · closed 2016-03-22
- 84 km s of atka, alaska2016-03-12 → 2016-03-15
- 72 km sse of atka, alaska this message2016-03-12 → 2016-03-15
- 75 km s of atka, alaska2016-03-19 → 2016-03-22
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.