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 248/03 · Containers2003-02-02 → 2003-02-06Two containers adrift vicinity 43-41.7N 009-44.9E at 021440Z feb
- HYDROLANT 229/03 · Exercises2003-01-31 → 2003-02-28Hazardous operations 0800Z to 1630Z daily: a. 03 thru 07, 10 thru 14, 17 thru 21 and 24 thru 28 feb in area…
- HYDROLANT 219/03 · Containers2003-01-30 → 2003-02-03Containers adrift at 300900Z jan in: a. 43-26N 009-36E
- HYDROLANT 65/03 · Other2003-01-10 → 2003-07-10Capo bonifati light 39-32.6N 015-53.0E at reduced intensity
- HYDROLANT 38/03 · Nav aids2003-01-06 → 2003-01-29Capo camino light 40-31.7N 009-49.7E unlit
- HYDROLANT 17/03 · Exercises2003-01-03 → 2003-01-31Hazardous operations 0800Z to 1630Z daily: a. 07 thru 10, 13 thru 17, 20 thru 24 and 27 thru 31 jan in area…
- HYDROLANT 2804/02 · Nav aids2002-12-19 → 2003-02-17Capo faro light 38-34.8N 014-52.2E unlit
- HYDROLANT 2803/02 · Nav aids2002-12-19 → 2003-01-10Scoglio palumbo light 38-00.9N 012-29.2E unlit
- HYDROLANT 2802/02 · Nav aids2002-12-19 → 2003-01-10Scogli porcelli light 38-02.6N 012-26.4E unlit
- HYDROLANT 2645/02 · Exercises2002-11-29 → 2002-12-17Hazardous operations 0800Z to 1630Z daily: a. 02 thru 06, 09 thru 13 and 16 thru 20 dec in area bound by…
- HYDROLANT 2514/02 · Exercises2002-11-15 → 2002-11-22Hazardous operations 0800Z to 1630Z daily 18 and 22 nov in area bound by 40-00N 010-00E, 40-00N 010-30E,…
- HYDROLANT 2480/02 · Nav aids2002-11-10 → 2002-12-13Punta timone light 40-55.6N 009-44.0E unlit
- HYDROLANT 2424/02 · Exercises2002-11-01 → 2002-11-29Hazardous operations 0800Z to 1630Z daily: a. 04 thru 08 and 25 thru 29 nov in area bound by 40-00N 010-00E,…
- HYDROLANT 2397/02 · Derelicts2002-10-30 → 2002-11-06Derelict vessel adrift in 38-08.4N 013-30.6E
- HYDROLANT 2391/02 · Debris2002-10-28 → 2002-11-0412 meter fishing net with six meter cage adrift in 40-20.5N 009-44.3E
- HYDROLANT 2345/02 · Exercises2002-10-24 → 2002-10-25Gunnery exercises 0700Z to 1400Z daily 24 and 25 oct in area bound by 41-15N 009-55E, 41-15N 010-25E, 41-05N…
- HYDROLANT 2339/02 · Nav aids2002-10-22 → 2002-11-21Capo ferrato light 39-17.7N 009-38.0E unlit
- HYDROLANT 2294/02 · Nav aids2002-10-16 → 2003-01-10Capo bonifati light 39-32.6N 015-53.0E unlit
- HYDROLANT 2267/02 · Nav aids2002-10-13 → 2002-10-18Capo ferrato light 39-17.7N 009-38.0E unlit
- HYDROLANT 2230/02 · Incidents2002-10-07 → 2002-11-2313 meter S/V success, white hull, one person on board, unreported
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.