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
- USGS-US7000GCFQ · Quakes2022-01-16 → 2022-01-1925 km sse of karyes, greece
- HYDROLANT 89/22 · Exercises2022-01-10 → 2022-02-24Hazardous operations 0500Z to 2200Z daily 11, 13, 18, 20, 25 and 27 jan and 01, 03, 08, 10, 15, 17, 22 and…
- HYDROLANT 30/22 · Exercises2022-01-04 → 2023-01-01Hazardous operations sunrise to sunset 01 jan thru 14 jun and 16 sep thru 31 dec in area bound by 38-02N…
- HYDROLANT 29/22 · Exercises2022-01-04 → 2023-01-01Hazardous operations in progress 0500Z to 1500Z monday thru thursday until 31 dec 22 except holidays in area…
- HYDROLANT 27/22 · Exercises2022-01-03 → 2022-12-31Hazardous operations in progress 0500Z to 1300Z daily until 31 dec except saturdays, sundays and holidays in…
- HYDROLANT 21/22 · Missiles2022-01-03 → 2023-01-01Gunnery and missile operations in progress 0530Z to sunset wednesday thru saturday until 31 dec: a. in area…
- HYDROLANT 2704/21 · Exercises2021-10-31 → 2021-11-04Hazardous operations 0500Z to sunset 02 nov and sunrise to 0530Z daily 03 and 04 nov in area bound by 35-36N…
- USGS-US7000FES8 · Quakes2021-09-27 → 2021-09-306 km n of thrapsanón, greece
- USGS-US6000F155 · Quakes2021-08-01 → 2021-08-0426 km ssw of mandráki, greece
- USGS-US7000EF1G · Quakes2021-06-21 → 2021-06-2420 km ssw of mandráki, greece
- HYDROLANT 1219/21 · Exercises2021-05-03 → 2021-05-05Hazardous operations 050500Z to 050900Z may in area bound by 39-00.0N 025-18.0E, 38-54.0N 024-52.0E,…
- HYDROLANT 1214/21 · Exercises2021-05-03 → 2021-06-14Hazardous operations 0500Z to 1200Z daily 04, 05, 06, 10, 11, 17, 18, 20 may, 07, 08, 09, 10 and 14 jun in…
- HYDROLANT 1088/21 · Exercises2021-04-20 → 2021-04-22Hazardous operations 0500Z to 1000Z daily 21 and 22, 211100Z to 211630Z, 221200Z to 221630Z apr in area…
- HYDROLANT 1087/21 · Exercises2021-04-20 → 2021-04-21Hazardous operations 201700Z to 202300Z apr in area bound by 36-37N 023-10E, 36-37N 023-25E, 36-52N 023-25E,…
- HYDROLANT 1074/21 · Exercises2021-04-19 → 2021-04-22Hazardous operations 201315Z to 201615Z, 210300Z to 210645Z, 211315Z to 211615Z, 220300Z to 220645Z and…
- HYDROLANT 1056/21 · Exercises2021-04-18 → 2021-04-19Hazardous operations 191100Z to 191400Z apr in area bound by 37-10N 023-00E, 37-10N 023-36E, 37-00N 023-36E,…
- HYDROLANT 950/21 · Exercises2021-04-07 → 2021-04-08Hazardous operations 080500Z to 080900Z apr in area bound by 39-00.0N 025-18.0E, 38-54.0N 024-52.0E,…
- HYDROLANT 928/21 · Exercises2021-04-05 → 2021-04-09Hazardous operations 091000Z to 091600Z apr in area bound by 36-05N 023-45E, 36-15N 023-45E, 36-15N 024-00E,…
- HYDROLANT 924/21 · Exercises2021-04-05 → 2021-04-08Hazardous operations 080600Z to 081300Z apr in area bound by 37-10N 023-00E, 37-10N 023-36E, 37-00N 023-36E,…
- HYDROLANT 913/21 · Exercises2021-04-05 → 2021-04-06Hazardous operations 061500Z to 061800Z apr in area bound by 37-47N 023-17E, 37-52N 023-22E, 37-50N 023-26E,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.