Quakes · tsunami
180 km wsw of nikolski, alaska
USGS-US1000GH9X
- issued
- 2018-08-25 16:50Z
- status
- cancelled 2018-08-28 16:50Z
- self-cancels
- 2018-08-28 16:50Z
- authority
- USGS NEIC
- sea
- North Pacific Ocean
- position
- 52.095, -171.125
- source
- usgs · first seen 2026-09-03 15:13Z
Original warning text
180 KM WSW OF NIKOLSKI, ALASKA. 1. EARTHQUAKE MAGNITUDE 5.9 (MWW) IN 52.095N 171.125W, DEPTH 23 KM AT 251650Z AUG 18. 2. A TSUNAMI MESSAGE WAS ISSUED FOR THIS EVENT. FOLLOW THE TSUNAMI WARNING CENTRES. 3. USGS EVENT US1000GH9X. https://earthquake.usgs.gov/earthquakes/eventpage/us1000gh9x
This area · earthquake & tsunami bulletins
133 within 180 nm since 1997 · 6 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
- 92 km s of nikolski, alaska2026-03-05
- 93 km sw of nikolski, alaska2026-02-23
- 96 km sw of nikolski, alaska2026-02-23
Season · when earthquake & tsunami bulletins happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
- 84 km ssw of nikolski, alaskaQuakes · 63.9 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.