Volcanic
Mariana Islands
Western North Pacific · HYDROPAC 1304/14
- issued
- 2014-05-05 23:28Z
- status
- cancelled 2014-05-06 01:08Z (archive)
- authority
- TINA NEAL USGS 052222Z MAY 14.
- position
- 19.275, 145.415
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH PACIFIC. MARIANA ISLANDS. CHART 81004 VOLCANIC ACTIVITY REPORTED IN: A. 20-25.2N 145-01.8E B. 18-07.8N 145-48.0E.
This area · volcanic activity
10 within 180 nm since 1999 · 2 in the last 12 months · 2 in force now
99
00
05
10
15
20
25
26
- Discolored water with increased likelihood of submarine volcanic activity reported in vicinity 20-26.00N…2026-07-16
- Discoloured water reported in vicinity of 20-26.0N 145-01.0E at 160013Z jul2026-07-16
- 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
Season · when volcanic activity happen here
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A
M
J
J
A
S
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month of issue, all years in the archive
Timeline
- Cancel HYDROPAC 1304/14cancelled by · 2014-05-06
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.