Earthquake with magnitude of 5.8 has occurred vicinity 43-35S 172-44E at 220058Z dec
South Pacific Ocean · HYDROPAC 3573/11
What this record establishes
Archived notice · 2011-12-24 10:45Z
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) · CNW 315/11 230538Z DEC 11.. Issued 2011-12-23 06:38Z. 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 -43.583, 172.733. 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
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.
- USGS-USP000JCH02011-12-23 · Cancelled notice
- USGS-USP000JCH92011-12-23 · Cancelled notice
- HYDROPAC 3573/11 · this notice2011-12-23 · Archived notice
Current notices and reporting history in the South Pacific Ocean →
- issued
- 2011-12-23 06:38Z
- status
- Archived notice
- authority
- CNW 315/11 230538Z DEC 11.
- issued by
- CNW
- sea
- South Pacific Ocean
- position
- -43.583, 172.733
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NEW ZEALAND. SOUTH ISLAND-EAST COAST. EARTHQUAKE WITH MAGNITUDE OF 5.8 HAS OCCURRED VICINITY 43-35S 172-44E AT 220058Z DEC. PORT OF LYTTELTON IS CLOSED.
Reading this warning
- 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.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
Collected reports in this area · earthquake & tsunami bulletins
32 within 180 nm since 2001 · 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.
- 33 km ne of amberley, new zealand2016-11-22
- 42 km se of blenheim, new zealand2016-11-15
- 39 km se of blenheim, new zealand2016-11-14
- 90 km s of blenheim, new zealand2016-11-14
- 74 km ne of amberley, new zealand2016-11-14
- 95 km s of blenheim, new zealand2016-11-13
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
3 earthquake & tsunami bulletins listed in force · see all
Record snapshot 2026-10-02 07:15Z; source collection times vary.
Quakes
Undersea earthquakes of magnitude 5.5 and above (USGS) and the tsunami bulletins NAVAREA coordinators relay. All current earthquake & tsunami bulletins →
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.