Volcanic · event

Discolored water with increased likelihood of submarine volcanic activity reported in vicinity 20-26.00N…

North Pacific · Northern Mariana Islands · 4 messages · since 2024-01-01

status: in force
opened: 2024-01-01 23:22Z
sea: North Pacific Ocean
position: 20.433, 145.017
joined by: chain (a message cancels or replaces another); proximity (same type, same sea, within 30 nm and 30 days)
key: volcanic:HYDROPAC-12/2024

Timeline · 4 messages, oldest first

1
HYDROPAC 12/242024-01-01 23:22Z → cancelled 2026-08-14 18:10Z (dropped from inforce)
Submarine volcanic activity causing discolored water reported in Northern Mariana Islands at 20-25.2N 145-01.8E at 22:30 UTC January 1.
```
WESTERN NORTH PACIFIC.
NORTHERN MARIANA ISLANDS.
DNC 12.
DISCOLORED WATER WITH SUBMARINE VOLCANIC ACTIVITY
REPORTED IN 20-25.2N 145-01.8E AT 012230Z JAN.
```
2
HYDROPAC 153/242024-01-13 23:49Z → cancelled 2026-08-14 18:10Z (dropped from inforce)
Discolored water with increased likelihood of submarine volcanic activity reported near Northern Mariana Islands at 20-25N 145-01E on January 13.
```
WESTERN NORTH PACIFIC.
NORTHERN MARIANA ISLANDS.
DNC 12.
DISCOLORED WATER WITH INCREASED LIKELIHOOD
OF SUBMARINE VOLCANIC ACTIVITY REPORTED
IN 20-25.00N 145-01.00E AT 132250Z JAN.
```
3
NAVAREA XI 322/262026-07-16 18:00Z · in force
Discoloured water reported near 20-26.0N 145-01.0E on 16 July at 0013Z; cancels warning 0020/24.Natural Phenomenon
```
NORTH PACIFIC, MARIANAS.
DISCOLOURED WATER REPORTED IN VICINITY
OF 20-26.0N 145-01.0E AT 160013Z JUL.
CANCEL 0020/24.
```

HYDROPAC 2039/262026-07-16 18:11Z · in force

Discolored water with increased likelihood of submarine volcanic activity is reported in Northern Mariana Islands vicinity at 20-26N 145-01E on July 16 at 0013Z.

NORTH PACIFIC.
NORTHERN MARIANA ISLANDS.
1. DISCOLORED WATER WITH INCREASED LIKELIHOOD
   OF SUBMARINE VOLCANIC ACTIVITY REPORTED
   IN VICINITY 20-26.00N 145-01.00E AT 160013Z JUL.
2. CANCEL HYDROPAC 153/24.

Volcanic

Submarine eruptions, discoloured water, pumice rafts. All current volcanic activity →

Not for navigation. Events are assembled automatically from official navigational warnings; the grouping can be wrong. Mariners must use official NAVAREA broadcasts and their national MSI service.