Volcanic activity in 2026

Submarine eruptions, discoloured water, pumice rafts.

issued in 2026
2
still in force
2
vs 2025
0%
first · last
07-16 · 07-16

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so this year is under-counted.

By month

J
F
M
A
M
J
J
A
S
O
N
D

By NAVAREA series

  • HYDROPAC1
  • NAVAREA XI1

Where · top seas

North Pacific Ocean2100%

All volcanic activity issued in 2026 · 2

  1. HYDROPAC 2039/26in force2026-07-16
    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
  2. NAVAREA XI 322/26in force2026-07-16
    Discoloured water reported near 20-26.0N 145-01.0E on 16 July at 0013Z; cancels warning 0020/24.
    North Pacific, Marianas

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.

Volcanic activity in 2026 · seahazards