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% |
| Spills | 1 | 0% |
| Missiles | 1 | 0% |
Archive · 862 cancelled
- HYDROLANT 893/04 · Surveys2004-05-24 → 2004-06-15Survey operations 25 may thru 14 jun by M/V urania along tracklines between: a. 38-39.19N 015-53.33E and…
- HYDROLANT 778/04 · Exercises2004-05-07 → 2004-05-14Gunnery exercises 0600Z to 1400Z daily 11 and 12 may, alternate 13 and 14 may within six miles of 38-30-40N…
- HYDROLANT 769/04 · Nav aids2004-05-06 → 2004-05-11Scoglio palumbo light 38-00.9N 012-29.2E unlit
- USGS-USP000CU7W · Quakes2004-05-05 → 2004-05-085 km s of leni, italy
- HYDROLANT 750/04 · Incidents2004-05-02 → 2004-05-03Man overboard from M/V moby freedom vicinity of trackline between livorno (43-32N 010-19E) and olbia (40-55N…
- HYDROLANT 732/04 · Exercises2004-04-30 → 2004-05-31Hazardous operations: a. 0600Z to 1800Z daily 03 thru 07, 10 thru 14, 17 thru 21, 24 thru 28 and 31 may in…
- HYDROLANT 730/04 · Incidents2004-04-30 → 2004-06-10Man overboard from M/V moby freedom vicinity of trackline between livorno (43-32N 010-19E) and olbia (40-55N…
- HYDROLANT 727/04 · Surveys2004-04-29 → 2004-05-04Survey operations in progress until 040500Z may by M/V urania along tracklines joining: a. 37-29.1N…
- HYDROLANT 711/04 · Nav aids2004-04-28 → 2004-04-29Capo zafferano light 38-06.6N 013-32.5E unlit
- HYDROLANT 706/04 · Nav aids2004-04-26 → 2004-05-12Capo faro light 38-34.8N 014-52.2E unlit
- HYDROLANT 672/04 · Surveys2004-04-21 → 2004-05-01Survey operations 23 apr thru 05 jun by M/V urania: a. in area between 38-38-48N 38-37-48N and 014-50-36E…
- HYDROLANT 667/04 · Nav aids2004-04-20 → 2004-04-23Capo zafferano light 38-06.6N 013-32.5E unlit
- HYDROLANT 666/04 · Nav aids2004-04-20 → 2004-05-06Punta solanto light 38-10.4N 012-46.1E unlit
- HYDROLANT 632/04 · Exercises2004-04-16 → 2004-05-01Hazardous operations 20 thru 30 apr in area bound by 39-14N 009-53E, 39-04N 010-07E, 39-00N 010-07E, 39-00N…
- HYDROLANT 570/04 · Nav aids2004-04-06 → 2004-04-19Capo zafferano light 38-06.6N 013-32.5E unlit
- HYDROLANT 568/04 · Derelicts2004-04-06 → 2004-04-1312 meter vessel, white hull, adrift vicinity 41-13N 010-57E
- HYDROLANT 526/04 · Exercises2004-03-30 → 2004-04-30Hazardous operations: a. 0600Z to 1800Z daily 01, 02, 05 thru 09, 13 thru 16, 19 thru 23 and 26 thru 30 apr…
- HYDROLANT 486/04 · Surveys2004-03-25 → 2004-04-04Survey operations 260001Z to 272259Z mar and 020332Z to 032359Z apr by M/V urania within 0.5 miles of: a.…
- HYDROLANT 449/04 · Nav aids2004-03-19 → 2004-05-15Isola razzoli light 41-18.4N 009-20.4E unlit
- HYDROLANT 355/04 · Nav aids2004-03-02 → 2004-04-02Capo zafferano light 38-06.6N 013-32.5E 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.