Volcanic · event
Volcanic activity reported at io-to in vicinty of 24-45.00N 141-17.3E
North Pacific · Philippine Sea · Japan · 6 messages · since 2021-07-13
- status
- in force
- opened
- 2021-07-13 12:00Z
- sea
- Philippine Sea
- position
- 24.750, 141.288
- joined by
- chain (a message cancels or replaces another); proximity (same type, same sea, within 30 nm and 30 days)
- key
- volcanic:NAVAREA11-231/2021
Timeline · 6 messages, oldest first
- 1NAVAREA XI 231/212021-07-13 12:00Z · in forceDiscoloured water is sighted near Nanpo Shoto at 24-48.8N 141-19.2E, July 13, 08:00 UTC. Vessels advised caution.Natural Phenomenon
NORTH PACIFIC, NANPO SHOTO. DISCOLOURED WATER OBSERVED IN VICINITY OF 24-48.8N 141-19.2E AT 130800Z JUL. VESSELS REQUESTED TO BE CAUTION ADVISED.
- 2HYDROPAC 2027/212021-07-13 12:31Z → cancelled 2026-08-14 18:10Z (dropped from inforce)Discolored water reported near 24-48.8N 141-19.2E in the Philippine Sea, Japan, at 130800Z July.
PHILIPPINE SEA. JAPAN. DNC 12. DISCOLORED WATER IN VICINITY 24-48.8N 141-19.2E AT 130800Z JUL.
- 3NAVAREA XI 207/232023-06-14 12:00Z · in forceDiscoloured water and submarine volcanic eruption continue near 24-17.2N 141-28.8E, North Pacific, Nanpo Shoto, at 140350Z June. Caution advised.Natural Phenomenon
NORTH PACIFIC, NANPO SHOTO. DISCOLOURED WATER OBSERVED IN VICINITY OF 24-17.2N 141-28.8E AT 140350Z JUN. SUBMARINE VOLCANIC ERUPTION CONTINUE. VESSELS REQUESTED TO BE CAUTION ADVISED. CANCEL 0110/22.
- 4HYDROPAC 3542/232023-11-10 10:03Z → cancelled 2026-08-14 18:10Z (dropped from inforce)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. DNC 12. VOLCANIC ACTIVITY REPORTED IN AREA WITHIN 400 METERS OF 24-45.44N 141-19.60E AT 100428Z NOV.
- 5HYDROPAC 3334/242024-10-23 12:53Z → cancelled 2025-12-04 16:15Z (dropped from snapshot)Volcanic activity reported in area within 400 meters of 24-45.44N 141-19.60E
PHILIPPINE SEA. JAPAN. DNC 12. 1. VOLCANIC ACTIVITY REPORTED IN AREA WITHIN 400 METERS OF 24-45.44N 141-19.60E. 2. CANCEL HYDROPAC 3542/23.
- 6HYDROPAC 2242/252025-09-02 10:24Z · in forceVolcanic activity is reported at Io-To in vicinity of 24-45.00N 141-17.3E.
NORTH PACIFIC. PHILIPPINE SEA. JAPAN. DNC 12. VOLCANIC ACTIVITY REPORTED AT IO-TO IN VICINTY OF 24-45.00N 141-17.3E.
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.