Volcanic · Natural Phenomenon
Discoloured water reported near 20-26.0N 145-01.0E on 16 July at 0013Z; cancels warning 0020/24.
North Pacific, Marianas · NAVAREA XI 322/26
- issued
- 2026-07-16 18:00Z
- status
- in force
- cancels
- NAVAREA XI 20/24
- authority
- Japan Coast Guard (JHOD)
- position
- 20.433, 145.017
- source
- jhod · first seen 2026-08-17 13:42Z
Original warning text
NORTH PACIFIC, MARIANAS. DISCOLOURED WATER REPORTED IN VICINITY OF 20-26.0N 145-01.0E AT 160013Z JUL. CANCEL 0020/24.
Conditions at the position · now
loading…
Open-Meteo Marine / Open-Meteo · GEBCO 2020 · model data at the centroid, not an observation
This area · volcanic activity
10 within 180 nm since 1999 · 2 in the last 12 months · 2 in force now
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- Discolored water with increased likelihood of submarine volcanic activity reported in vicinity 20-26.00N…2026-07-16
- Discolored water with increased likelihood of submarine volcanic activity reported in 20-25.00N 145-01.00E…2024-01-13
- Discolored water with submarine volcanic activity reported in 20-25.2N 145-01.8E at 012230Z jan2024-01-01
- Discolored water with submarine volcanic activity reported in 20-25.20N 145-01.80E at 270127Z jan2023-01-28
- Cancel HYDROPAC 1304/142014-05-06
- Mariana Islands2014-05-05
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.