Tsunami warning
South Pacific Ocean · HYDROPAC 1954/11
What this record establishes
Archived notice · 2011-07-06 20:01Z
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) · PTWC 061933Z JUL 11.. Issued 2011-07-06 20:01Z. 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 -29.333, -175.700. 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
- Tsunami warninglater cancellation notice
These messages are connected by recorded cancellation references. The links establish relationships between notices; they do not by themselves confirm a single object, a continuous track, or recovery.
- HYDROPAC 1954/11 · this notice2011-07-06 · Archived notice
- HYDROPAC 1955/112011-07-06 · Archived notice
Current notices and reporting history in the South Pacific Ocean →
- issued
- 2011-07-06 20:01Z
- status
- Archived notice
- authority
- PTWC 061933Z JUL 11.
- issued by
- PTWC
- sea
- South Pacific Ocean
- position
- -29.333, -175.700
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTH PACIFIC. TSUNAMI WARNING. AN EARTHQUAKE OCCURED AT 061903Z JUL. PRELIMARNY MAG 7.8, PRELIMINARY LOCATION 29-20S 175-42W VICINTIY KERMADEC ISLANDS. A TSUNAMI HAS BEEN GENERATED WHICH COULD CAUSE DAMAGE TO COASTS AND ISLANDS IN THE PACIFIC AREA. TSUNAMI WAVE HEIGHTS CANNOT BE PREDICTED AND MAY BE A SERIES OF WAVES WHICH COULD BE DANGEROUS FOR SEVERAL HOURS AFTER THE INITIAL WAVE ARRIVAL.
Reading this warning
- 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.
- 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.
Collected reports in this area · earthquake & tsunami bulletins
337 within 180 nm since 1997 · 11 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.
- Earthquake magnitude 5.5 (mww) in 27.858S 177.229W, depth 94 km at 182318Z sep 262026-09-18
- Earthquake magnitude 5.5 (mww) in 30.168S 177.884W, depth 29 km at 300902Z aug 262026-08-30
- Earthquake magnitude 5.6 (mww) in 28.793S 176.333W, depth 10 km at 131611Z aug 262026-08-13
- Earthquake magnitude 5.6 (mb) in 28.782S 176.450W, depth 10 km at 300508Z jul 262026-07-30
- Earthquake magnitude 5.8 (mww) in 28.584S 176.637W, depth 10 km at 300508Z jul 262026-07-30
- Earthquake magnitude 5.9 (mww) in 28.409S 176.660W, depth 14 km at 292227Z jul 262026-07-29
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
1 earthquake & tsunami bulletins listed in force · see all
Record snapshot 2026-09-29 02:55Z; 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.