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
97
98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
By month (all years)
J
F
M
A
M
J
J
A
S
O
N
D
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 1334/05 · Exercises2005-07-22 → 2005-07-27Hazardous operations in prgoress until further notice within one mile of 41-15.1N 009-36.2E
- HYDROLANT 1323/05 · Surveys2005-07-20 → 2005-08-01Oceanographic operations 21 jul thru 30 jul by M/V universitatis along trackline joining 38-54.0N 014-30.0E,…
- HYDROLANT 1270/05 · Nav aids2005-07-10 → 2006-02-01Isola tavolara light 40-55.2N 009-44.2E unreliable
- HYDROLANT 1128/05 · Debris2005-06-15 → 2005-06-22500 meter long fishing net with red floats adrift in 39-42.5N 010-22.9E at 152014Z jun
- HYDROLANT 1018/05 · Exercises2005-05-30 → 2005-06-17Hazardous operations: a. 0700Z to 1800Z daily 01, 06 thru 09, 13 thru 16 and 20 jun and 0700Z to 1200Z daily…
- HYDROLANT 967/05 · Incidents2005-05-22 → 2005-06-16Distress signal received from M/V blue zingara in 38-39N 011-31E
- HYDROLANT 939/05 · Exercises2005-05-18 → 2005-05-21Hazardous operations 19 may, alternate 20 may within 4000 meters of 41-18N 009-29E
- HYDROLANT 917/05 · Surveys2005-05-16 → 2005-05-27Oceanographic operations 17 thru 26 may by M/V urania along tracklines between: a. 38-37.12N 015-05.24E and…
- HYDROLANT 872/05 · Cable ops2005-05-09 → 2005-05-31Cable operations in progress until 30 may by cableship teliri within two miles of 38-52.1N 009-39.1E and…
- HYDROLANT 850/05 · Surveys2005-05-06 → 2005-05-12Oceanographic operations by M/V urania: a. 08 thru 10 may along trackline joining: 37-38.89N 012-08.67E,…
- HYDROLANT 846/05 · Exercises2005-05-06 → 2005-05-31Hazardous operations: 1. 0700Z to 1800Z daily 09 thru 12, 16 thru 19, 23 thru 26, 30 and 31 may and 0700Z to…
- HYDROLANT 840/05 · Ordnance2005-05-05 → 2005-05-06Underwater ordnance detonations 05 may within three miles of 39-07.3N 009-11.7E
- HYDROLANT 781/05 · Exercises2005-04-26 → 2005-04-30Hazardous operations 28 and 29 apr in area bound by 40-11-12N 009-38-00E, 40-11-34N 009-38-70E, 40-10-34N…
- HYDROLANT 746/05 · Cable ops2005-04-21 → 2005-04-21Oceanographic operations by cableship urania: a. 24 apr thru 10 may and 12 thru 16 may vicinity of trackline…
- HYDROLANT 720/05 · Exercises2005-04-18 → 2005-04-19Hazardous operations 18 apr vicinity 39-07-03N 009-11-07E
- HYDROLANT 711/05 · Cable ops2005-04-16 → 2005-07-11Cable laying operations 17 apr until further notice by cableship teliri along trackline joining 38-35.582N…
- HYDROLANT 689/05 · Nav aids2005-04-14 → 2005-04-15Scoglio palumbo light 38-00.9N 012-29.2E unlit
- HYDROLANT 687/05 · Cable ops2005-04-14 → 2005-05-09Cable operations 16 apr thru 18 may by cableship teliri along trackline joining 38-35.582N 010-32.490E,…
- HYDROLANT 679/05 · Ordnance2005-04-12 → 2005-04-14Ordnance clearing operations in progress until 13 apr in 38-56.5N 009-04.5E
- HYDROLANT 660/05 · Nav aids2005-04-09 → 2005-04-13Scoglio palumbo light 38-00.9N 012-29.2E 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.