Nga chart 76030 (9TH ed)
South Pacific Ocean · HYDROPAC 1899/09
What this record establishes
Archived notice · 2009-10-31 04:24Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XIV 54/09 200357Z OCT 09.. Issued 2009-10-20 06:15Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- South Pacific Ocean. The parsed report position is -25.883, -177.183. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Nga chart 76030 (9TH ed)later cancellation notice
These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.
- HYDROPAC 1899/09 · this notice2009-10-20 · Archived notice
- HYDROPAC 1980/092009-10-31 · Archived notice
Current notices and reporting history in the South Pacific Ocean →
- issued
- 2009-10-20 06:15Z
- status
- Archived notice
- authority
- NAVAREA XIV 54/09 200357Z OCT 09.
- NAVAREA
- NAVAREA XIV · named as the source of this relay
- sea
- South Pacific Ocean
- position
- -25.883, -177.183
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NGA CHART 76030 (9TH ED). AN EARTHQUAKE OCCURRED VICINITY 25-53S 177-11W. GAS AND DISCOLORED WATER MAY BE PRESENT. CAUTION ADVISED.
Reading this warning
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Discoloured water
- Patches of unusually coloured sea — often a sign of a submarine volcano or of a shoal.
Collected reports in this area · volcanic activity
8 within 180 nm since 2009 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Volcanic activity reported vicinity 25-53S 177-11W2015-10-16
- Volcanic activity reported vicinity 25-53S 177-11W2015-03-09
- Volcanic activity reported vicinity 25-53S 177-11W2015-01-12
- South Pacific2013-09-16
- Kermadec Islands2012-08-06
- Nga chart 76030 (9TH ed)2011-05-17
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
12 volcanic activity listed in force · see all
Record snapshot 2026-10-03 00:05Z; source collection times vary.
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.