Aegean Sea

IHO sea area 28h · 23° to 28° E, 35° to 41° N

in force
3
last 12 months
3
archive messages
1,492
categories
11

What the archive shows

1,492 messages are recorded since 1997-11-14 for the Aegean 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.

Exercises accounts for 1,129 of 1,492 recorded messages (76%), 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 · 3

  1. HYDROLANT 237/26 · Missiles2026-02-03
    Missile operations occur daily Wednesday through Saturday in the Aegean Sea until June 14 and September 16 through December 31.
  2. HYDROLANT 238/26 · Exercises2026-02-03
    Hazardous operations occur daily 0500Z to 1500Z until 14 June and 16 September to 31 December, excluding Fridays, Saturdays, Sundays, and holidays, in Aegean Sea area.
  3. HYDROLANT 236/26 · Exercises2026-02-03
    Hazardous operations take place daily in the Aegean Sea until 14 June and from 16 September to 31 December, in a defined area.

Longest in force

  1. HYDROLANT 236/26 · Exercises2026-02-03
    Hazardous operations take place daily in the Aegean Sea until 14 June and from 16 September to 31 December, in a defined area.
  2. HYDROLANT 238/26 · Exercises2026-02-03
    Hazardous operations occur daily 0500Z to 1500Z until 14 June and 16 September to 31 December, excluding Fridays, Saturdays, Sundays, and holidays, in Aegean Sea area.
  3. HYDROLANT 237/26 · Missiles2026-02-03
    Missile operations occur daily Wednesday through Saturday in the Aegean Sea until June 14 and September 16 through December 31.

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
25
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

By category · available archive

Exercises1,12976%
Surveys14310%
Cable ops876%
Missiles493%
Quakes332%
Incidents221%
Nav aids121%
Other70%
Ordnance60%
Debris20%
Mines20%

Archive · 1,489 cancelled

  1. HYDROLANT 3438/20 · Exercises2020-11-07 → 2020-11-11
    Hazardous operations 111505Z to 111705Z nov in area bound by 36-20N 023-40E, 36-20N 024-10E, 36-40N 024-10E,…
  2. HYDROLANT 3413/20 · Cable ops2020-11-05 → 2020-11-08
    Underwater operations in progress until 07 nov by cableship ievoli ivory along trackline joining 36-22.68N…
  3. HYDROLANT 3412/20 · Cable ops2020-11-05 → 2020-11-09
    Cable operations in progress until further notice by cableship giulo verne along trackline joining 35-58.70N…
  4. HYDROLANT 3411/20 · Cable ops2020-11-05 → 2020-11-08
    Underwater operations by cableship urbano monti in progress until 07 nov along trackline joining 36-20.7N…
  5. HYDROLANT 3372/20 · Cable ops2020-11-03 → 2020-11-05
    Underwater operations by cableship ievoli ivory: a. in progress until 04 nov along trackline joining…
  6. HYDROLANT 3370/20 · Cable ops2020-11-03 → 2021-02-01
    Cable operations 04 nov until further notice by M/V isaac newton in vicinity of trackline joining 35-31.16N…
  7. HYDROLANT 3363/20 · Cable ops2020-11-02 → 2020-11-05
    Underwater operations by cableship urbano monti in progress until 04 nov along trackline joining 36-58.70N…
  8. HYDROLANT 3353/20 · Exercises2020-11-01 → 2020-12-31
    Hazardous operations 0600Z to 0820Z daily 02 thru 03 nov and 021245Z to 021515Z nov and 0600Z to 1300Z daily…
  9. HYDROLANT 3352/20 · Exercises2020-11-01 → 2020-11-03
    Hazardous operations 0600Z to 1523Z daily 02 and 03 nov in area bound by 35-36N 024-07E, 36-18N 024-07E,…
  10. HYDROLANT 3348/20 · Cable ops2020-10-31 → 2020-11-03
    Underwater operations by cableship ievoli ivory: a. in progress until 01 nov along trackline joining…
  11. HYDROLANT 3342/20 · Exercises2020-10-30 → 2020-11-01
    Hazardous operations 110600Z to 110850Z nov and 0600Z to 1300Z daily 04, 05, 09, 12, 16 thru 19, 23 thru 26,…
  12. HYDROLANT 3338/20 · Cable ops2020-10-30 → 2020-10-31
    Aegean sea DNC 09
  13. HYDROLANT 3333/20 · Quakes2020-10-30 → 2020-10-30
    Earthquake with preliminary magnitude of 6.6 has occurred in preliminary location 37-54N 026-46E vicinity of…
  14. USGS-US7000C7Y0 · Quakes2020-10-30 → 2020-11-02
    13 km nne of néon karlovásion, greece
  15. HYDROLANT 3324/20 · Exercises2020-10-30 → 2020-10-30
    Hazardous operations 300600Z to 301300Z oct in area bound by 36-56N 023-29E, 36-42N 023-32E, 36-41N 023-48E,…
  16. HYDROLANT 3306/20 · Cable ops2020-10-29 → 2020-11-01
    Cable operations in progress until 31 oct by M/V urbano monti along tracklines joining: a. 37-27.2N…
  17. HYDROLANT 3296/20 · Exercises2020-10-28 → 2020-11-01
    Hazardous operations 010700Z to 011100Z nov in area bound by 37-01N 025-36E, 37-01N 025-41E, 37-09N 025-41E,…
  18. HYDROLANT 3295/20 · Cable ops2020-10-28 → 2020-10-30
    Underwater operations in progress until 30 oct by cableship ievoli ivory along trackline joining 37-12.34N…
  19. HYDROLANT 3287/20 · Cable ops2020-10-28 → 2020-10-29
    Cable operations in progress until 30 oct by M/V urbano monti along tracklines joining: a. 37-24.5N…
  20. HYDROLANT 3269/20 · Exercises2020-10-26 → 2020-10-27
    Hazardous operations 270600Z to 271300Z oct in area bound by 38-45N 025-21E, 38-45N 024-52E, 38-18N 024-52E,…

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.