Volcanic
Discolored water with submarine volcanic activity reported in vicinity 20-51.4S 175-32.7W at 310307Z jan
South Pacific · Tonga · HYDROPAC 364/17
- issued
- 2017-01-31 22:20Z
- status
- cancelled 2017-04-17 21:52Z (archive)
- authority
- NAVAREA XIV 16/17 312030Z JAN 17.
- sea
- South Pacific Ocean
- position
- -20.857, -175.545
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
SOUTH PACIFIC. TONGA. DNC 06. CHART 83560. DISCOLORED WATER WITH SUBMARINE VOLCANIC ACTIVITY REPORTED IN VICINITY 20-51.4S 175-32.7W AT 310307Z JAN.
This area · volcanic activity
18 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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15
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23
- Volcanic activity reported in area within three miles of 18-59.00S 174-46.00W2023-10-16
- Volcanic activity reported in area within two miles of 18-59.55S 174-46.44W2022-09-14
- A volcanic eruption has occurred in vicinity 20-30S 175-24W at 150427Z jan 222022-01-15
- Volcanic activity reported in 20-34S 175-23W2022-01-15
- Discolored water with submarine volcanic activity reported in vicinity 18-18S 174-24W at 100030Z sep2019-09-13
- Discolored water with submarine volcanic activity reported in vicinity 18-18S 174-24W2019-08-27
Season · when volcanic activity happen here
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month of issue, all years in the archive
Timeline
- Cancel HYDROPAC 364/17 and this msgcancelled by · 2017-04-17
Nearby now · within 120 nm
Nothing else in force 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.