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 1756/02 · Ordnance2002-08-07 → 2002-08-09Underwater ordnance detonations 08 aug vicinity 41-17.2N 009-30.6E
- HYDROLANT 1716/02 · Nav aids2002-08-02 → 2002-08-08Isola della bocca light 40-55.2N 009-34.1E unlit
- HYDROLANT 1667/02 · Nav aids2002-07-28 → 2002-07-30Capo zafferano light 38-06.6N 013-32.5E unlit
- HYDROLANT 1622/02 · Cable ops2002-07-23 → 2002-07-26Cable operations 260600Z jul until further notice by cableship teneo along trackline joining 40-05.4N…
- HYDROLANT 1618/02 · Cable ops2002-07-22 → 2002-07-23Cable operations 230600Z jul until further notice by cableship teneo along trackline joining 39-55.1N…
- HYDROLANT 1539/02 · Ordnance2002-07-11 → 2002-07-13Ordnance detonation 120500Z to 121400Z jul, alternate 130500Z to 131400Z jul within 4000 meters of 39-07.8N…
- HYDROLANT 1488/02 · Nav aids2002-07-05 → 2002-08-08Talamone light 42-33.1N 011-08.0E unlit
- HYDROLANT 1437/02 · Incidents2002-06-29 → 2002-08-11Four meter inflatable vessel, three persons on board, adrift in 38-49N 012-02E at 290730Z jun
- HYDROLANT 1326/02 · Ordnance2002-06-14 → 2002-06-21Unexploded ordnance adrift in 38-04N 012-32E
- HYDROLANT 1306/02 · Exercises2002-06-12 → 2002-06-17Gunnery exercises 0700Z to 1530Z daily 14 and 17 jun in area bound by 40-15N 010-00E, 40-15N 011-31E, 40-11N…
- HYDROLANT 1289/02 · Nav aids2002-06-11 → 2002-06-13Capo rasocolmo light 38-17.7N 015-31.2E unlit
- HYDROLANT 1230/02 · Incidents2002-06-02 → 2002-07-19Distress signal received in 39-41.9N 014-25.5E at 022203Z jun
- HYDROLANT 1210/02 · Exercises2002-05-31 → 2002-06-20Gunnery exercises 0700Z to 1530Z daily: a. 03 thru 07, 10 thru 14 and 17 thru 20 jun in area bound by 40-00N…
- HYDROLANT 1141/02 · Nav aids2002-05-21 → 2002-05-31Capo zefferano light 38-06.6N 013-32.5E unlit
- HYDROLANT 1099/02 · Derelicts2002-05-13 → 2002-05-20Lifeboat adrift vicinity 38-24.7N 015-10.4E
- HYDROLANT 1087/02 · Exercises2002-05-12 → 2002-05-16Gunnery exercises 0700Z to 1100Z daily 14 and 16 may within two miles of 38-32.5N 015-50.0E
- HYDROLANT 1078/02 · Nav aids2002-05-10 → 2002-05-15Capo zafferano light 38-06.7N 013-32.3E unlit
- HYDROLANT 1077/02 · Exercises2002-05-10 → 2002-05-17Gunnery exercises 0600Z to 1400Z daily 14 and 15 may, alternate daily 16 and 17 may within six miles of…
- HYDROLANT 1065/02 · Nav aids2002-05-08 → 2003-03-07Isola dei cavoli light 39-05.3N 009-32.1E unlit
- HYDROLANT 1054/02 · Nav aids2002-05-07 → 2002-05-07Capo gallo light 38-13.3N 013-19.1E unlit
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.