Cable ops

Seismic survey in progress until 01 dec by M/V nan hai 502 towing 7500 meter long cable in area between…

HYDROLANT 2530/99

issued: 1999-11-25 07:30Z
status: cancelled 1999-12-01 09:45Z (archive)
cancels: HYDROLANT 2523/99
authority: NAVAREA V 1033/99 250403Z NOV 99 EGC#141
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. SEISMIC SURVEY IN PROGRESS UNTIL 01 DEC BY
   M/V NAN HAI 502 TOWING 7500 METER LONG CABLE
   IN AREA BETWEEN 19-20S 20-30S AND 038-30W 039-30W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 2523/99.

Timeline

Seismic survey in progress until further notice by M/V nan hai 502 towing 7500 meter long cable in area…replaced · 1999-11-24
Seismic survey in progress until 07 dec by M/V nan hai 502 towing four mile long cable in area bound by…cancelled by · 1999-12-01

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

40 cable & pipeline work in force · see all

Cable ops

Cable laying, pipeline and seismic operations. All current cable & pipeline work →

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.