Surveys

Underwater survey operations 30 jun thru 08 jul by M/V tethys in area between 41-15N 41-30N and 008-40E…

HYDROLANT 1334/99

issued: 1999-06-28 13:02Z
status: cancelled 1999-07-09 06:00Z (archive)
authority: MARISARDEGNA 77/99 280935Z JUN 99
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER SURVEY OPERATIONS 30 JUN THRU 08 JUL BY
   M/V TETHYS IN AREA BETWEEN 41-15N 41-30N AND
   008-40E 009-25E. 1000 METER BERTH REQUESTED.
2. CANCEL THIS MSG 09 JUL.

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

84 survey operations in force · see all

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

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.