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 63/20 · Exercises2020-01-08 → 2020-01-17
    Hazardous operations 0600Z to 1000Z daily 10 and 17 jan in area bound by 39-00.0N 025-18.0E, 38-54.0N…
  2. HYDROLANT 59/20 · Exercises2020-01-08 → 2020-01-20
    Hazardous operations 0600Z to 1000Z daily 09 and 20 jan in area bound by 36-25N 026-30E, 36-30N 026-58E,…
  3. HYDROLANT 57/20 · Exercises2020-01-07 → 2020-01-30
    Hazardous operations 0600Z to 1000Z daily 08, 10, 17, 21, 28, and 30 jan in area bound by 38-09.38N…
  4. HYDROLANT 29/20 · Exercises2020-01-03 → 2020-01-08
    Hazardous operations 080600Z to 081000Z jan in area bound by 39-25.10N 025-55.02E, 39-00.00N 025-18.00E,…
  5. HYDROLANT 28/20 · Exercises2020-01-03 → 2020-02-26
    Hazardous operations 0600Z to 1000Z daily 07, 13, 23 jan and 05, 17, 26 feb in area bound by 37-24.0N…
  6. HYDROLANT 14/20 · Exercises2020-01-02 → 2020-01-08
    Gunnery exercises 081001Z to 081130Z jan in area bound by 39-30N 025-33E, 39-40N 025-33E, 39-40N 025-20E,…
  7. HYDROLANT 6/20 · Exercises2020-01-01 → 2020-01-27
    Hazardous operations 0600Z to 1300Z daily 02, 07 thru 09, 13 thru 16, 20 thru 23, 27 thru 30 jan, 03 thru…
  8. HYDROLANT 5/20 · Exercises2020-01-01 → 2020-01-02
    Hazardous operations 020600Z to 021000Z jan in area bound by 39-00.0N 025-18.0E, 38-54.0N 024-52.0E,…
  9. HYDROLANT 4/20 · Exercises2020-01-01 → 2020-01-07
    Hazardous operations 0600Z to 1000Z daily 02 and 07 jan in area bound by 40-30.00N 025-53.00E, 40-35.00N…
  10. HYDROLANT 3/20 · Exercises2020-01-01 → 2020-01-03
    Hazardous operations 030600Z to 031000Z jan in area bound by 38-50N 025-00E, 38-30N 025-00E, 38-30N 025-45E,…
  11. HYDROLANT 2/20 · Exercises2020-01-01 → 2020-01-03
    Hazardous operations 030600Z to 031000Z jan in area bound by 40-26.45N 025-55.03E, 40-23.00N 025-54.00E,…
  12. HYDROLANT 4021/19 · Missiles2019-12-31 → 2020-06-06
    Gunnery and missile operations 0530Z to sunset wednesday thru saturday 01 jan thru 31 mar, wednesday thru…
  13. HYDROLANT 4007/19 · Exercises2019-12-30 → 2021-01-01
    Hazardous operations sunrise to sunset daily 01 jan thru 31 dec 20 in area bound by 38-02N 024-52E, 38-16N…
  14. HYDROLANT 4005/19 · Exercises2019-12-30 → 2020-12-31
    Hazardous operations 0500Z to 1500Z daily 01 jan thru 31 dec 20 except fridays, saturdays, sundays and…
  15. HYDROLANT 4003/19 · Missiles2019-12-30 → 2019-12-31
    Gunnery and missile operations 0530Z to sunset wednesday thru saturday 01 jan thru 31 mar, wednesday thru…
  16. HYDROLANT 3981/19 · Exercises2019-12-27 → 2019-12-30
    Hazardous operations 300600Z to 301000Z dec in area bound by 39-25.16N 025-55.03E, 39-00.00N 025-18.00E,…
  17. HYDROLANT 3980/19 · Exercises2019-12-27 → 2019-12-30
    Hazardous operations 300600Z to 301000Z dec in area bound by 36-25N 026-30E, 36-30N 026-58E, 36-13N 027-29E,…
  18. HYDROLANT 3954/19 · Exercises2019-12-25 → 2019-12-29
    Hazardous operations 291000Z to 291100Z dec in area bound by 39-31N 026-00E, 39-41N 026-00E, 39-41N 025-47E,…
  19. HYDROLANT 3946/19 · Exercises2019-12-24 → 2019-12-28
    Hazardous operations in progress until 27 dec in area bound by 36-56N 023-29E, 36-42N 023-32E, 36-41N…
  20. HYDROLANT 3920/19 · Exercises2019-12-20 → 2019-12-23
    Hazardous operations 231100Z to 231500Z dec in area bound by 39-31N 026-00E, 39-41N 026-00E, 39-41N 025-47E,…

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