Volcanic · Natural Phenomenon
Discoloured water observed in vicinity of 24-48.8N 141-19.2E at 130800Z jul
North Pacific, Nanpo Shoto · NAVAREA XI 231/21
- issued
- 2021-07-13 12:00Z
- status
- in force
- authority
- Japan Coast Guard (JHOD)
- position
- 24.813, 141.320
- source
- jhod · first seen 2026-08-17 13:42Z
Original warning text
NORTH PACIFIC, NANPO SHOTO. DISCOLOURED WATER OBSERVED IN VICINITY OF 24-48.8N 141-19.2E AT 130800Z JUL. VESSELS REQUESTED TO BE CAUTION ADVISED.
Conditions at the position · now
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Open-Meteo Marine / Open-Meteo · GEBCO 2020 · model data at the centroid, not an observation
This area · volcanic activity
85 within 180 nm since 1996 · 1 in the last 12 months · 7 in force now
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- Volcanic activity reported at io-to in vicinty of 24-45.00N 141-17.3E2025-09-02
- Volcanic activity reported in area within 400 meters of 24-45.44N 141-19.60E at 100428Z nov2023-11-10
- Discolored water reported in vicinity 25-27.10N 141-14.50E at 140425Z jun2023-06-14
- Discoloured water observed in vicinity of 25-27.1N 141-14.5E at 140425Z jun2023-06-14
- Discoloured water observed in vicinity of 24-17.2N 141-28.8E at 140350Z jun2023-06-14
- Discolored water reported in vicinity 25-27.10N 141-14.50E at 110433Z may2023-05-12
Season · when volcanic activity happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
Worldwide now
12 volcanic activity in force · see all
Volcanic
Submarine eruptions, discoloured water, pumice rafts. All current volcanic activity →
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.