沪航警834/26
Received: 21 Oct 2026, 12:53Updated: 2 Nov 2026, 09:54
analysis
ActiveVirtual AIS isolated-danger wreck mark established in Yangtze Estuary
A virtual AIS navigation mark for the wreck "SHENG XIANG 77 WRECK" has been established in the Yangtze (Changjiang) estuary. Position given as 31-02.37N、122-28.96E with MMSI 994136521. The mark is an isolated danger mark. Vessels are advised to take caution.
Exercise caution when transiting the area and monitor AIS for the virtual mark (MMSI 994136521).
- Type
- Aids to navigation · severity low
- Feed
- Aids to navigationAll warnings of this kind on the map (contributors), or as an API feed: /api/v2/feeds/aton/
- Location
- Changjiang (Yangtze) estuary
- Hazards
- virtual AIS aid to navigation, isolated danger mark (wreck)
Coast stations for this area
- RCCMRCC ShanghaiChina53 NM from the area
- RCCMRSC NingboChina85 NM from the area
- RCCRCC JejuRepublic of Korea253 NM from the area
- DSCDSC Station Dalian RadioMRCC ShanghaiChinaMMSI 004122100VHF 25, MF 100range 100 NM49 NM from the area
- DSCDSC Station Ningbo RadioMRSC NingboChinaMMSI 004122400VHF 25, MF 100range 100 NM80 NM from the area
- DSCDSC Station Wenzhou RadioWenzhou HASChinaMMSI 004122500MF 100range 100 NM206 NM from the area
- DSCDSC Station Seoul RadioRCC JejuRepublic of KoreaMMSI 004400701VHF 25, MF 250range 250 NM251 NM from the area
- DSCDSC Station Jeju Coast Guard Station, Jeju VTSRCC JejuRepublic of KoreaMMSI 004401005VHF 25, MF 250, HFrange 250 NM254 NM from the area
Aids to navigation affected
- Newly establishedSHENG XIANG 77 WRECK · MMSI: 994136521 · 31-02.37N、122-28.96E
No aids-to-navigation list in the database yet; aids are shown as the warning names them.
Generated automatically from the warning text on 21 Oct 2026, 13:17 UTC. It can be wrong: the original warning below is the authoritative text.
Message content
SH21/26 CHANGJIANG KOU ,SHENG XIANG 77 WRECK AIS VIRTUL NAVIGATION AIDS ESTABLISHED 31-02.37N、122-28.96E,ISOLATED DANGER MARK,BROADCAST INTERVAL OF 3 MINUTES. CAUTION ADVISED. SHANGHAI MSA CHINA.