Eastern China Sea
IHO sea area 50 · 118° to 131° E, 24° to 33° N
- in force
- 1
- last 12 months
- 7
- archive messages
- 545
- categories
- 15
What the archive shows
545 messages are recorded since 1977-02-05 for the Eastern China 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.
Cable ops accounts for 220 of 545 recorded messages (40%), 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 2023-07-28 08:00ZA large buoy exists in the East China Sea at 31 degrees north, 124 degrees east.
In force now · 1
Longest in force
By year
77
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
| Cable ops | 220 | 40% |
| Incidents | 129 | 24% |
| Quakes | 100 | 18% |
| Ordnance | 24 | 4% |
| Nav aids | 14 | 3% |
| Surveys | 11 | 2% |
| Derelicts | 8 | 1% |
| Exercises | 8 | 1% |
| Missiles | 7 | 1% |
| Other | 6 | 1% |
| Containers | 6 | 1% |
| Wrecks | 4 | 1% |
| Debris | 3 | 1% |
| Volcanic | 3 | 1% |
| Spills | 2 | 0% |
Archive · 544 cancelled
- USGS-US70004JEA · Quakes2019-07-13 → 2019-07-16169 km nw of naze, japan
- HYDROPAC 1823/19 · Missiles2019-06-04 → 2019-06-05Hazardous operations, rocket launching 050402Z to 050615Z jun in area bound by 33-14-08N 123-37-44E,…
- HYDROPAC 1639/19 · Incidents2019-05-15 → 2019-05-15Distress signals received on 406 mhz at 150803Z may in: a. 28-49-58N 136-55-40E b. 24-25-51N 117-49-51E…
- HYDROPAC 1581/19 · Incidents2019-05-10 → 2019-05-24Distress signal received in 25-46N 123-50E at 101449Z may
- HYDROPAC 1365/19 · Incidents2019-04-22 → 2019-05-10Distress signal received on 406 mhz in 26-42-43N 123-30-04E at 221713Z apr
- HYDROPAC 919/19 · Incidents2019-03-20 → 2019-04-05Distress signal received on 406 mhz in 27-23-52N 123-45-14E at 200955Z mar
- HYDROPAC 796/19 · Incidents2019-03-09 → 2019-03-22Distress signal received on 406 mhz in 27-06-00N 123-51-25E at 082040Z mar
- HYDROPAC 795/19 · Incidents2019-03-09 → 2019-03-22Distress signal received on 406 mhz in 26-55-16N 123-11-56E at 082025Z mar
- HYDROPAC 724/19 · Incidents2019-03-04 → 2019-03-08Distress signal received on 406 mhz in 28-21-35N 129-59-43E at 040836Z mar
- HYDROPAC 711/19 · Incidents2019-03-02 → 2019-03-22Distress signal received on 406 mhz in vicinity 27-28N 123-32E at 021953Z mar
- HYDROPAC 710/19 · Incidents2019-03-02 → 2019-03-22Distress signal received from M/V nord pyxis on 406 mhz in 32-40.5N 124-03.8E at 021104Z mar 19
- HYDROPAC 595/19 · Incidents2019-02-21 → 2019-03-08Distress signal received on 406 mhz in vicinity 27-13.52N 123-36.17E at 211316Z feb
- HYDROPAC 594/19 · Incidents2019-02-21 → 2019-03-08Distress signal received at 211137Z feb in 31-48-02N 125-43-00E
- HYDROPAC 157/19 · Incidents2019-01-15 → 2019-02-01Distress signal received on 406 mhz from M/V ZHEDAIYU10032 in vicinity 26-59N 123-33E at 151705Z jan
- HYDROPAC 131/19 · Incidents2019-01-13 → 2019-01-13Distress signal received on 406 mhz from vessel ZHEDAIYU10032 in 26-52-15N 123-24-03E at 130210Z jan
- HYDROPAC 4483/18 · Cable ops2018-12-16 → 2018-12-24Cable operations 171600Z to 241600Z dec by cableship lodbrog in vicinity of trackline joining 25-33.8N…
- HYDROPAC 4474/18 · Incidents2018-12-15 → 2019-01-04Distress signals received on 406 mhz from M/V ZHEENGYU18092 in 26-39.3N 123-04.0E at 151738Z dec
- HYDROPAC 4327/18 · Incidents2018-12-05 → 2018-12-21Distress signal received in vicinity 31-10.6N 127-35.3E at 050732Z dec
- USGS-US1000HUJF · Quakes2018-11-20 → 2018-11-2334 km w of nagata, japan
- HYDROPAC 4147/18 · Incidents2018-11-17 → 2018-11-30Distress signal received on 406 mhz from M/V zhedaiyu in 26-57N 123-58E at 170220Z nov
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.