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
- HYDROPAC 1672/18 · Incidents2018-04-29 → 2018-05-18Distress signal received in 26-20N 123-30E at 290859Z apr
- HYDROPAC 1395/18 · Incidents2018-04-11 → 2018-04-27Distress signal received in 27-15.4N 124-01.3E at 112113Z apr
- HYDROPAC 1296/18 · Incidents2018-04-04 → 2018-04-20Distress signal received on VHF ch 16 in 26-38N 122-56E at 041316Z apr
- HYDROPAC 1240/18 · Incidents2018-03-31 → 2018-04-13Distress signal received in 25-59N 123-05E at 302254Z mar
- HYDROPAC 891/18 · Incidents2018-03-07 → 2018-03-23Distress signal received on 406 mhz in 28-41-27N 121-31-37E at 070807Z mar
- HYDROPAC 799/18 · Incidents2018-03-01 → 2018-03-01Distress signals received on 406 mhz at 010118Z mar in: a. 27-32-05N 133-20-13E
- HYDROPAC 703/18 · Incidents2018-02-21 → 2018-03-09Distress signal received on 406 mhz from min lian yu 61943 at 210131Z feb in 25-58.23N 122-11.39E
- HYDROPAC 620/18 · Incidents2018-02-15 → 2018-03-03Distress signal received on 406 mhz in 26-33-42N 123-06-30E at 142248Z feb
- HYDROPAC 555/18 · Incidents2018-02-09 → 2018-02-09Distress signal received on 406 mhz from vessel zhexiangyuyun 02086 in 29-13-30N 123-57-03E at 092033Z feb
- HYDROPAC 497/18 · Incidents2018-02-06 → 2018-02-23Distress signal received in 26-00.51N 123-17.40E at 052320Z feb
- HYDROPAC 336/18 · Incidents2018-01-25 → 2018-01-25Distress signal received on 406 mhz from vessel zhe pu yu 72381 in 30-37-22N 127-17-34E at 250650Z jan
- HYDROPAC 283/18 · Incidents2018-01-22 → 2018-02-09Distress signal received on 406 mhz from vessel zhefengyu in 26-40-35N 123-24-39E at 212308Z jan
- NOAAORR-9646 · Spills2018-01-16 → 2018-01-30East china sea
- HYDROPAC 4595/17 · Incidents2017-12-27 → 2017-12-27Distress signal received on 406 mhz from aircraft in 31-23-59N 124-47-56E at 270810Z dec
- HYDROPAC 4454/17 · Incidents2017-12-18 → 2018-01-05Distress signal received on 406 mhz in 29-45N 126-45E at 180846Z dec
- HYDROPAC 4011/17 · Incidents2017-11-18 → 2017-12-08Distress signal received on 406 mhz in 27-01-58N 123-39-15E at 180929Z nov
- HYDROPAC 3999/17 · Cable ops2017-11-17 → 2017-11-27Cable operations 19 thru 25 nov, alternate 26 nov thru 02 dec by cableship fu an in area bound by 33-18.1N…
- HYDROPAC 3952/17 · Incidents2017-11-15 → 2017-12-01Distress signal received in 26-29N 123-12E at 150356Z nov
- HYDROPAC 3879/17 · Incidents2017-11-09 → 2017-11-24Distress signal received in 26-09N 123-29E at 091821Z nov
- HYDROPAC 3869/17 · Incidents2017-11-09 → 2017-11-24Aircraft ditched in vicinity 26-38.23N 122-13.06E at 071102Z 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.