Tyrrhenian Sea
IHO sea area 28e · 9° to 16° E, 38° to 44° N
- in force
- 0
- last 12 months
- 4
- archive messages
- 862
- categories
- 16
What the archive shows
862 messages are recorded since 1997-01-20 for the Tyrrhenian Sea. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.
Nav aids accounts for 219 of 862 recorded messages (25%), the largest category group in this selection.
The NGA historical archive froze in 2024-05; live collection began 2026-08-17. Counts around that gap are incomplete, and changes in reporting volume do not establish changes in incident frequency.
In force now · 0
Nothing in force in this sea right now.
By year
By month (all years)
By category · available archive
| Nav aids | 219 | 25% |
| Exercises | 182 | 21% |
| Surveys | 111 | 13% |
| Incidents | 108 | 13% |
| Ordnance | 57 | 7% |
| Cable ops | 51 | 6% |
| Other | 46 | 5% |
| Derelicts | 34 | 4% |
| Containers | 16 | 2% |
| Wrecks | 11 | 1% |
| Quakes | 9 | 1% |
| Debris | 8 | 1% |
| Towing | 6 | 1% |
| Restricted | 2 | 0% |
| Missiles | 1 | 0% |
| Spills | 1 | 0% |
Archive · 862 cancelled
- HYDROLANT 504/06 · Surveys2006-03-13 → 2006-04-09Oceanographic operations 15 mar thru 08 apr by M/V fs poseidon in area bound by 38-45N 011-00E, 38-35N…
- HYDROLANT 437/06 · Containers2006-03-02 → 2006-03-09Container adrift vicinity 38-35.95N 015-44.51E at 28 feb
- HYDROLANT 406/06 · Exercises2006-02-27 → 2006-03-31Hazardous operations 0900Z to 1800Z daily 01 thru 03, 06 thru 10, 13 thru 17, 20 thru 24, and 27 thru 31 mar…
- HYDROLANT 265/06 · Other2006-02-07 → 2006-06-06Isola santa maria light 41-17.4N 009-23.1E at reduced intensity
- HYDROLANT 246/06 · Exercises2006-02-04 → 2006-02-28Hazardous operations: a. 0900Z to 2000Z daily 06 thru 10, 13 thru 17, 20 thru 24, 27 and 28 feb in area…
- HYDROLANT 205/06 · Nav aids2006-01-30 → 2006-02-01Isola della bacon light 40-55.2N 009-34.1E unlit
- HYDROLANT 198/06 · Exercises2006-01-29 → 2006-01-31Gunnery exercises 310800Z to 311500Z jan within four miles of 38-27.24N 014-06.24E
- HYDROLANT 132/06 · Incidents2006-01-21 → 2006-01-23Man overboard from M/V can deval vicinity 38-31.3N 011-12.2E at 201500Z jan
- HYDROLANT 128/06 · Incidents2006-01-20 → 2006-03-08Man overboard from M/V can deval vicinity 38-30.3N 011-12.2E at 201500Z jan
- HYDROLANT 51/06 · Nav aids2006-01-09 → 2006-02-09Capo bonifati light 39-32.5N 015-53.3E unlit
- HYDROLANT 2410/05 · Nav aids2005-12-27 → 2005-12-30Isola razzoli light 41-18.4N 009-20.4E unreliable
- HYDROLANT 1853/05 · Debris2005-10-10 → 2005-10-17Eight mile long fishing net with buoys adrift along trackline between 39-21.8N 013-29.3E and 39-27.0N…
- HYDROLANT 1715/05 · Exercises2005-09-20 → 2005-10-31Hazardous operations: a. 0900Z to 2000Z daily 21 thru 23, 26 thru 28, 0001Z to 2359Z daily 29 and 30 sep,…
- HYDROLANT 1586/05 · Derelicts2005-08-31 → 2005-09-07Derelict 45 foot vessel adrift vicinity 39-46N 013-47E
- HYDROLANT 1526/05 · Debris2005-08-22 → 2005-08-2913 meter pontoon and crane adrift in 38-36.0N 011-06.8E
- HYDROLANT 1519/05 · Surveys2005-08-19 → 2005-08-26Underwater operations 23 thru 28 aug by M/V universitatis in: a. 39-24.00N 014-35.40E
- HYDROLANT 1476/05 · Derelicts2005-08-15 → 2005-08-22Derelict 13 meter vessel adrift vicinity 41-13N 011-23E
- HYDROLANT 1475/05 · Debris2005-08-14 → 2005-08-21Seven meter long fishing net adrift in 38-20N 013-44E
- HYDROLANT 1463/05 · Cable ops2005-08-12 → 2005-08-15Cable operations in progress until further notice by cableship rene descartes along trackline joining…
- HYDROLANT 1377/05 · Cable ops2005-07-29 → 2005-07-31Survey operations in progress until further notice by cableship raymond croze within 1.5 miles of 38-22.127N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.