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.
- An older warning still listed in force · issued 2026-02-03 17:37ZHazardous operations take place daily in the Aegean Sea until 14 June and from 16 September to 31 December, in a defined area.
In force now · 3
- HYDROLANT 237/26 · Missiles2026-02-03Missile operations occur daily Wednesday through Saturday in the Aegean Sea until June 14 and September 16 through December 31.
- HYDROLANT 238/26 · Exercises2026-02-03Hazardous 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.
- HYDROLANT 236/26 · Exercises2026-02-03Hazardous 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
- HYDROLANT 236/26 · Exercises2026-02-03Hazardous operations take place daily in the Aegean Sea until 14 June and from 16 September to 31 December, in a defined area.
- HYDROLANT 238/26 · Exercises2026-02-03Hazardous 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.
- HYDROLANT 237/26 · Missiles2026-02-03Missile 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
| Exercises | 1,129 | 76% |
| Surveys | 143 | 10% |
| Cable ops | 87 | 6% |
| Missiles | 49 | 3% |
| Quakes | 33 | 2% |
| Incidents | 22 | 1% |
| Nav aids | 12 | 1% |
| Other | 7 | 0% |
| Ordnance | 6 | 0% |
| Debris | 2 | 0% |
| Mines | 2 | 0% |
Archive · 1,489 cancelled
- HYDROLANT 1115/20 · Exercises2020-03-26 → 2020-03-27Gunnery exercises 270800Z to 270900Z mar in area bound by 38-55.93N 025-24.97E, 39-03.93N 025-41.97E,…
- HYDROLANT 1105/20 · Exercises2020-03-25 → 2020-03-27Hazardous operations 270600Z to 271000Z mar in area bound by 36-25N 026-30E, 36-30N 026-58E, 36-13N 027-29E,…
- HYDROLANT 1093/20 · Exercises2020-03-24 → 2020-03-27Hazardous operations 270600Z to 271000Z mar in area bound by 38-50.0N 025-00.0E, 38-30.0N 025-00.0E,…
- HYDROLANT 1049/20 · Exercises2020-03-20 → 2020-03-21Hazardous operations 210600Z to 210800Z mar in area bound by 36-56N 023-29E, 36-42N 023-32E, 36-41N 023-48E,…
- HYDROLANT 1048/20 · Exercises2020-03-20 → 2020-04-07Hazardous operations in progress until 06 apr in area bound by 35-23.00N 024-15.50E, 35-23.00N 024-22.33E,…
- HYDROLANT 1045/20 · Exercises2020-03-20 → 2020-03-26Hazardous operations 0600Z to 1000Z daily 24 and 26 mar in area bound by 37-24.0N 026-00.0E, 37-31.0N…
- HYDROLANT 1032/20 · Exercises2020-03-19 → 2020-03-20Hazardous operations 200600Z to 201000Z mar in area bound by 40-30.00N 025-53.00E, 40-35.00N 024-58.00E,…
- HYDROLANT 1031/20 · Exercises2020-03-19 → 2020-03-20Hazardous operations 200600Z to 201000Z mar in area bound by 38-09.38N 026-12.48E, 38-00.00N 025-45.00E,…
- HYDROLANT 1030/20 · Exercises2020-03-19 → 2020-03-20Hazardous operations 201000Z to 201600Z mar in area bound by 36-56N 023-29E, 36-42N 023-32E, 36-41N 023-48E,…
- HYDROLANT 1020/20 · Exercises2020-03-17 → 2020-03-19Hazardous operations 190600Z to 191000Z mar in area bound by 40-26.45N 025-55.08E, 40-23.00N 025-54.00E,…
- HYDROLANT 995/20 · Exercises2020-03-16 → 2020-03-21Gunnery exercises 190900Z to 191200Z and 210600Z to 210900Z mar in area bound by 39-31N 026-00E, 39-41N…
- HYDROLANT 965/20 · Exercises2020-03-14 → 2020-03-18Hazardous operations 180600Z to 18100Z mar in area bound by 36-25N 026-30E, 36-30N 026-58E, 36-13N 027-29E,…
- HYDROLANT 959/20 · Exercises2020-03-13 → 2020-03-17Hazardous operations 170800Z to 171630Z mar in area bound by 37-00N 023-36E, 37-00N 023-00E, 37-10N 023-00E,…
- HYDROLANT 958/20 · Exercises2020-03-13 → 2020-03-21Hazardous operations 16 thru 20 mar in area bound by 35-23.00N 024-15.50E, 35-23.00N 024-22.33E, 35-21.75N…
- HYDROLANT 956/20 · Exercises2020-03-13 → 2020-03-18Hazardous operations 171301Z to 171500Z, 171900Z to 180500Z and 181301Z to 181500Z mar in area bound by…
- HYDROLANT 955/20 · Exercises2020-03-13 → 2020-03-17Hazardous operations 170600Z to 171000Z mar in area bound by 39-00.0N 025-18.0E, 38-54.0N 024-52.0E,…
- HYDROLANT 951/20 · Exercises2020-03-13 → 2020-03-18Hazardous operations 160600Z to 161000Z and 180600Z to 181000Z mar in area bound by 39-25.17N 025-55.03E,…
- HYDROLANT 949/20 · Exercises2020-03-13 → 2020-03-15Gunnery exercises 151130Z to 151430Z mar in area bound by 39-31N 026-00E, 39-41N 026-00E, 39-41N 025-47E,…
- HYDROLANT 931/20 · Exercises2020-03-11 → 2020-04-20Hazardous operations 0600Z to 1300Z daily 16 thru 19, 23 thru 26 mar, 0500Z to 1200Z daily 06 thru 09, 13…
- HYDROLANT 929/20 · Exercises2020-03-10 → 2020-03-12Hazardous operations 121001Z to 121100Z mar in area bound by 38-56N 025-25E, 39-04N 025-42E, 39-15N 025-38E,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.