Quakes

Cancel HYDROPAC 3693/18 and this msg, tsunami not generated

Solomon Sea · Papua New Guinea · HYDROPAC 3695/18

What this record establishes

Archived notice · 2018-10-10 23:43Z

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 X 66/18 CX 102300Z OCT 18.. Issued 2018-10-10 23:43Z. 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
Solomon Sea · Papua New Guinea. No usable coordinates were parsed; a location-based nearby search is unavailable. 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.

  1. USGS-US1000HA9T2018-10-10 · Cancelled notice
  2. USGS-US1000HAA32018-10-10 · Cancelled notice
  3. USGS-US1000HAAB2018-10-10 · Cancelled notice
  4. USGS-US1000HAAJ2018-10-10 · Cancelled notice
  5. HYDROPAC 3693/182018-10-10 · Archived notice
  6. HYDROPAC 3695/18 · this notice2018-10-10 · Archived notice
Compare all 9 notices, changes and original texts →
issued
2018-10-10 23:43Z
status
Archived notice
authority
NAVAREA X 66/18 CX 102300Z OCT 18.
NAVAREA
NAVAREA X · named as the source of this relay
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SOLOMON SEA.
PAPUA NEW GUINEA.
DNC 05.
CANCEL HYDROPAC 3693/18 AND THIS MSG,
TSUNAMI NOT GENERATED.

Reading this warning

DNC (Digital Nautical Chart)
A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.

All warning terms →

Nearby notices listed in force · within 120 nm

No parsed position is available for this comparison.

Worldwide in the collected sources

2 earthquake & tsunami bulletins listed in force · see all

Record snapshot 2026-10-03 08:00Z; 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.