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 284/20 · Exercises2020-01-27 → 2020-01-27
    Hazardous operations 1700Z to 0400Z commencing daily 28 thru 30 jan in area bound by 35-55N 023-05E, 36-55N…
  2. HYDROLANT 282/20 · Exercises2020-01-27 → 2020-01-27
    Hazardous operations 280600Z jan thru 030600Z feb in area bound by 40-34.0N 025-50.0E, 40-15.2N 025-52.0E,…
  3. HYDROLANT 277/20 · Exercises2020-01-26 → 2020-01-26
    Hazardous operations 1700Z to 0400Z commencing daily 28 and 29 jan in area bound by 36-55N 028-20E, 37-12N…
  4. HYDROLANT 269/20 · Exercises2020-01-26 → 2020-02-28
    Hazardous operations 0600Z to 1000Z daily 29 jan, 06, 12, 19, 26 and 28 feb in area bound by 39-00N 025-18E,…
  5. HYDROLANT 268/20 · Exercises2020-01-26 → 2020-01-27
    Hazardous operations 0600Z to 1000Z daily 29 jan, 03, 07 and 13 feb in area bound by 40-30N 025-53E, 40-35N…
  6. HYDROLANT 262/20 · Exercises2020-01-25 → 2020-01-31
    Hazardous operations 270500Z to 311600Z jan in area bound by 37-24.0N 026-00.0E, 37-24.0N 026-04.0E,…
  7. HYDROLANT 261/20 · Exercises2020-01-25 → 2020-01-31
    Hazardous operations 0500Z to 1600Z daily 27 jan thru 28 jan, 291001Z to 261600Z jan, 0500Z to 1600Z daily…
  8. HYDROLANT 260/20 · Exercises2020-01-25 → 2020-01-31
    Hazardous operations 0500Z to 1600Z daily 27 jan thru 28 jan, 291001Z to 291600Z jan, 0500Z to 1600Z daily…
  9. HYDROLANT 191/20 · Exercises2020-01-20 → 2020-01-28
    Hazardous operations 0600Z to 1000Z daily 22 and 28 jan in area bound by 39-25.16N 025-55.03E, 39-00.00N…
  10. HYDROLANT 168/20 · Exercises2020-01-17 → 2020-01-21
    Hazardous operations 210600Z to 211000Z jan in area bound by 39-00.0N 025-18.0E, 38-54.0N 024-52.0E,…
  11. HYDROLANT 167/20 · Exercises2020-01-17 → 2020-05-01
    Hazardous operations 1001Z to 1600Z daily 29 jan, 06, 12, 19, 26 and 28 feb, 1031Z to 1600Z daily 14 and 15…
  12. HYDROLANT 166/20 · Exercises2020-01-17 → 2020-05-01
    Hazardous operations 1001Z to 1600Z daily 29 jan, 03, 07, 13 and 20 feb, 1031Z to 1600Z daily 14 and 15 may,…
  13. HYDROLANT 165/20 · Exercises2020-01-17 → 2020-05-01
    Hazardous operations 1000Z to 1600Z daily 23 jan, 05, 17 and 26 feb, 0500Z to 1600Z daily 22, 24, 27 thru 31…
  14. HYDROLANT 152/20 · Exercises2020-01-16 → 2020-01-20
    Gunnery exercises 201200Z to 201300Z jan in area bound by 37-45.43N 025-57.97E, 37-55.93N 026-37.63E,…
  15. HYDROLANT 143/20 · Exercises2020-01-15 → 2020-01-21
    Gunnery exercises 0600Z to 1500Z daily 20 and 21 jan in area bound by 38-51.0N 026-36.0E, 38-51.0N…
  16. HYDROLANT 142/20 · Exercises2020-01-15 → 2020-01-21
    Hazardous operations 210500Z to 210600Z jan in area bound by 37-27N 026-17E, 37-08N 026-27E, 37-05N 026-09E,…
  17. HYDROLANT 140/20 · Exercises2020-01-15 → 2020-01-30
    Hazardous operations 0600Z to 1000Z daily 15, 16, 20, 24 and 30 jan in area bound by 38-30N 025-45E, 38-30N…
  18. HYDROLANT 126/20 · Exercises2020-01-14 → 2020-01-16
    Hazardous operations 0700Z to 1100Z daily 15 and 16 jan in area bound by 39-48.75N 025-22.13E, 39-46.45N…
  19. HYDROLANT 114/20 · Exercises2020-01-13 → 2020-01-16
    Hazardous operations 1500Z to 0600Z commencing daily 14 and 15 jan in area bound by 36-55N 023-05E, 37-12N…
  20. HYDROLANT 92/20 · Exercises2020-01-10 → 2020-01-25
    Hazardous operations 0600Z to 1000Z daily 14,22 and 24 jan in area bound by 40-26.27N 025-55.05E, 40-23.00N…

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