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 1167/00 · Cable ops2000-08-08 → 2000-09-12Cable laying operations 09 aug thru 11 sep by cableship toisa coral vicinity of trackline joining 31-28.3N…
- HYDROPAC 1141/00 · Cable ops2000-08-03 → 2000-10-01Underwater pipeline operations in progress until 30 sep vicinity of trackline joining 30-51-32N 121-51-01E,…
- HYDROPAC 1137/00 · Cable ops2000-08-03 → 2000-08-03Underwater pipeline operations in progress until 30 sep vicinity of trackline joining 30-51-32N 121-51-01E,…
- HYDROPAC 1062/00 · Cable ops2000-07-18 → 2000-09-16Cable laying operations in progress until 15 sep vicinity of trackline joining 31-27.5N 122-28.5E, 31-25.1N…
- HYDROPAC 1057/00 · Incidents2000-07-17 → 2000-09-01F/V zhelingyu capsized in 29-32N 124-54E
- HYDROPAC 810/00 · Cable ops2000-05-30 → 2000-07-25Underwater cable operations in progress until 24 jul by cableship cable retriever vicinity of tracklines…
- HYDROPAC 798/00 · Cable ops2000-05-29 → 2000-08-26Seismic survey in progress until 25 aug by vessel towing 4000 meter long cable in area bound by 28-05N…
- HYDROPAC 788/00 · Incidents2000-05-28 → 2000-05-28M/V pratibha yamina, 38 persons on board, on fire in 28-08.5N 122-54.6E at 271100Z may
- HYDROPAC 787/00 · Incidents2000-05-27 → 2000-05-28Distress signal received on 406 mhz from M/V pratibha yamuna in 28-07.08N 123-10.44E at 271018Z may
- HYDROPAC 637/00 · Cable ops2000-04-27 → 2000-04-05Cable laying operations 02 thru 04 may by cableship kdd ocean link in area bound by 31-30N 123-00E, 31-20N…
- HYDROPAC 633/00 · Other2000-04-27 → 2000-05-04Two mile long cable missing vicinity 28-34.7N 124-49.9E at 262045Z apr
- HYDROPAC 587/00 · Cable ops2000-04-17 → 2000-07-01Seismic survey in progress until 10 jul by M/V nordic explorer towing 4500 meter long cable in areas bound…
- HYDROPAC 567/00 · Cable ops2000-04-13 → 2000-04-25Underwater cable repair operations 15 thru 24 apr by cableship kdd ocean link in area bound by 31-30N…
- HYDROPAC 515/00 · Incidents2000-04-01 → 2000-04-08Derelict 12 meter vessel, red hull, capsized and adrift vicinity 33-04.0N 124-14.3E at 010502Z apr
- USGS-USP0009MSM · Quakes2000-01-28 → 2000-01-31162 km nnw of hirara, japan
- USGS-USP0009MJG · Quakes2000-01-23 → 2000-01-2620 km se of koseda, japan
- HYDROPAC 62/00 · Incidents2000-01-12 → 2000-02-25Distress signal received on 406 mhz from vessel NO.1 pioneer in 29-18N 124-07E at 122010Z jan
- HYDROPAC 1205/99 · Other1999-11-08 → 1999-12-24M/V sin tong on fire in 31-48N 122-53E at 080035Z nov
- HYDROPAC 1204/99 · Other1999-11-08 → 1999-11-08M/V sin tong on fire in 32-01N 122-58E at 071943Z nov
- HYDROPAC 1171/99 · Incidents1999-11-02 → 1999-11-05Distress signal received from M/V ocean jade, mmsi 451437310, in 29-48N 124-16E at 020349Z 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.