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 3189/01 · Nav aids2001-12-16 → 2002-01-08Scogli porcelli light 38-02.6N 012-26.4E unlit
- HYDROLANT 3178/01 · Nav aids2001-12-14 → 2001-12-15Punta polveraia light 42-47.6N 010-06.7E unlit
- HYDROLANT 3084/01 · Exercises2001-12-04 → 2001-12-14Gunnery exercises 0800Z to 1630Z daily: a. 05 thru 14 dec, except saturday and sunday, in area bound by…
- HYDROLANT 3059/01 · Surveys2001-11-30 → 2001-12-04Oceanographic operations 04 thru 24 dec by M/V urania along trackline joining 43-30N 008-00E, 43-00N…
- HYDROLANT 3056/01 · Other2001-11-30 → 2001-12-08Punta del ferraione light 43-03.1N 009-50.7E at reduced intensity
- HYDROLANT 3051/01 · Nav aids2001-11-29 → 2001-11-30Viareggio light 43-51.4N 010-14.2E unreliable
- HYDROLANT 3037/01 · Containers2001-11-28 → 2001-12-05Container adrift vicinity 38-20.15N 015-10.09E
- HYDROLANT 2999/01 · Surveys2001-11-23 → 2001-12-03Underwater operations 0700Z to 1900Z daily 23 nov thru 10 dec by M/V manning towing equipment in area bound…
- HYDROLANT 2971/01 · Nav aids2001-11-20 → 2001-11-23Capo milazzo light 38-16.1N 015-13.9E unlit
- HYDROLANT 2922/01 · Exercises2001-11-13 → 2001-11-15Hazardous operations 0800Z to 1500Z daily until 15 nov within five miles of 43-25N 010-06E
- HYDROLANT 2898/01 · Nav aids2001-11-10 → 2001-11-11Buoy, orange, fl w, established in 38-33.5N 012-23.5E
- HYDROLANT 2886/01 · Cable ops2001-11-09 → 2001-11-12Underwater cable operations in progress until 15 nov by M/V certamen within five miles of 38-39.9N 012-03.2E
- HYDROLANT 2864/01 · Wrecks2001-11-07 → 2003-04-09Dangerous wreck marked by buoy in 41-50.4N 012-06.8E
- HYDROLANT 2861/01 · Nav aids2001-11-06 → 2001-11-08Capo rasocoluo light 38-17.4N 015-31.1E unreliable until 21 nov
- HYDROLANT 2860/01 · Surveys2001-11-06 → 2001-12-01Underwater research operations 08 thru 30 nov by M/V alliance towing equipment: a. in area bound by…
- HYDROLANT 2857/01 · Exercises2001-11-06 → 2001-11-07Gunnery exercises 070800Z to 071200Z nov within three miles of 38-33.1N 015-42.6E
- HYDROLANT 2855/01 · Nav aids2001-11-05 → 2001-12-10Isola santo light 38-34.9N 014-52.3E unlit
- HYDROLANT 2814/01 · Exercises2001-10-31 → 2001-11-30Gunnery exercises 0800Z to 1630Z daily: a. 02 thru 30 nov, except saturdays and sundays, in area bound by…
- HYDROLANT 2770/01 · Other2001-10-26 → 2001-10-31Punta gavazzi light 38-41.6N 013-09.3E at reduced intensity
- HYDROLANT 2760/01 · Surveys2001-10-25 → 2001-11-16Oceanographic operations 26 oct until further notice by M/V urania in area bound by 41-00N 012-42E, 40-51N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.