Survey operations in the Tyrrhenian Sea

Hydrographic and scientific survey vessels, often towing long arrays.

in force
0
last 12 months
0
vs previous 12 (0)
—
since 1999
111

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 0

No survey operations in force in the Tyrrhenian Sea right now.

By year

99
00
01
02
03
04
05
06
09
12
14
20
21
24

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

Other hazards in the Tyrrhenian Sea

Archive · 111 cancelled

  1. HYDROLANT 1315/991999-06-25 → 1999-07-01
    Underwater survey operations 29 and 30 jun by M/V alliance in area bound by 43-44N 009-50E, 43-44N 010-10E,…
  2. HYDROLANT 1292/991999-06-22 → 1999-06-29
    Survey operations in progress until 28 jun by vessel towing equipment within one mile of trackline joining…
  3. HYDROLANT 1288/991999-06-22 → 1999-06-30
    Survey operations in progress until 29 jun by M/V grecale secondo towing 500 meter long cable along…
  4. HYDROLANT 1124/991999-06-01 → 1999-06-21
    Survey operations in progress until 20 jun by M/V akademik nicolaj strakhov along trackline joining 41-06.3N…
  5. HYDROLANT 1073/991999-05-26 → 1999-05-28
    Underwater survey operations in progress until 25 jun by M/V strakhov towing 500 meter long cable along…
  6. HYDROLANT 1060/991999-05-24 → 1999-05-27
    Survey operations 25 may thru 25 jun by M/V akademik nicolaj strakhov along trackline joining 41-10.8N…
  7. HYDROLANT 895/991999-05-04 → 1999-05-05
    Underwater operations 050700Z to 051800Z may within one mile of 43-59-00N 009-55-30E
  8. HYDROLANT 627/991999-04-01 → 1999-04-09
    Research operations 060700Z to 092000Z apr by M/V alliance towing array in area bound by 43-51N 009-47E,…
  9. HYDROLANT 581/991999-03-24 → 1999-04-13
    Underwater operations in progress until further notice by M/V strakhov vicinity 40-46N 012-46E
  10. HYDROLANT 344/991999-02-16 → 1999-03-01
    Survey operations in progress until 28 feb by M/V strakhov towing equipment 500 meters astern along…
  11. HYDROLANT 190/991999-01-29 → 1999-01-31
    Underwater operations in progress until 312000Z jan in areas within: a. 1000 yards of 44-04N 009-44E

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.

Survey operations in the Tyrrhenian Sea — page 3 · seahazards