Bismarck Sea

IHO sea area 66 · 142° to 153° E, -6° to -1° N

in force: 1
last 12 months: 13
archive messages: 568
categories: 9

What the archive shows

568 messages are recorded since 1997-06-02 for the Bismarck Sea. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.

Quakes accounts for 309 of 568 recorded messages (54%), the largest category group in this selection.

The NGA historical archive froze in 2024-05; live collection began 2026-08-17. Counts around that gap are incomplete, and changes in reporting volume do not establish changes in incident frequency.

An older warning still listed in force · issued 2026-09-06 06:27ZMotor vessel Limco Logger is reported stranded and suspected aground on a reef northeast of Cape Gloucester, West New Britain Province; ships should navigate with caution.

In force now · 1

NAVAREA X 99/26 · Wrecks2026-09-06
Motor vessel Limco Logger is reported stranded and suspected aground on a reef northeast of Cape Gloucester, West New Britain Province; ships should navigate with caution.

Longest in force

NAVAREA X 99/26 · Wrecks2026-09-06
Motor vessel Limco Logger is reported stranded and suspected aground on a reef northeast of Cape Gloucester, West New Britain Province; ships should navigate with caution.

By year

By month (all years)

By category · available archive

Quakes	309	54%
Incidents	231	41%
Derelicts	7	1%
Other	7	1%
Cable ops	5	1%
Nav aids	3	1%
Wrecks	3	1%
Debris	2	0%
Piracy	1	0%

Archive · 567 cancelled

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