Volcanic activity in 2023

Submarine eruptions, discoloured water, pumice rafts.

issued in 2023
10
still in force
2
vs 2022
+67%
first · last
01-28 · 11-10

By month

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

By NAVAREA series

  • HYDROPAC8
  • NAVAREA XI2

Where · top seas

Philippine Sea880%
North Pacific Ocean110%
South Pacific Ocean110%

All volcanic activity issued in 2023 · 10

  1. HYDROPAC 3542/232023-11-10 → 2026-08-14
    Volcanic activity is reported in the Philippine Sea within 400 meters of 24-45.44N 141-19.60E at 04:28 UTC on November 10.
    Philippine Sea · Japan
  2. HYDROPAC 3339/232023-10-20 → 2023-10-23
    Possible pumices adrift in vicinity of trackline joining 30-41.00N 139-51.00E, 30-24.00N 139-45.00E,…
    Philippine Sea · Japan
  3. HYDROPAC 3336/232023-10-20 → 2023-10-20
    Possible pumices adrift in vicinity of trackline joining 30-41.00N 139-51.00E, 30-24.00N 139-45.00E,…
    Philippine Sea · Japan
  4. HYDROPAC 3288/232023-10-16 → 2024-01-22
    Volcanic activity reported in area within three miles of 18-59.00S 174-46.00W
    South Pacific · Tonga
  5. HYDROPAC 2986/232023-09-19 → 2026-08-14
    Discolored water with submarine volcanic activity is reported near Northern Mariana Islands at 15-37N 145-34E on September 19 at 03:06 UTC.
    Western North Pacific · Northern Mariana Islands
  6. HYDROPAC 1982/232023-06-14 → 2026-08-14
    Discolored water reported at 25-27N 141-14E in Philippine Sea on June 14 at 0425Z, cancels previous warning 1568/23.
    Philippine Sea · Japan
  7. NAVAREA XI 206/23in force2023-06-14
    On June 14, discoloured water was observed near 25-27.1N 141-14.5E in Nanpo Shoto; vessels advised caution.
    North Pacific, Nanpo Shoto
  8. NAVAREA XI 207/23in force2023-06-14
    Discoloured water and submarine volcanic eruption continue near 24-17.2N 141-28.8E, North Pacific, Nanpo Shoto, at 140350Z June. Caution advised.
    North Pacific, Nanpo Shoto
  9. HYDROPAC 1568/232023-05-12 → 2023-06-14
    Discolored water reported in vicinity 25-27.10N 141-14.50E at 110433Z may
    Philippine Sea · Japan
  10. HYDROPAC 306/232023-01-28 → 2023-07-18
    Discolored water with submarine volcanic activity reported in 20-25.20N 145-01.80E at 270127Z jan
    Western North Pacific · Northern Mariana Islands

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 2023 · seahazards