02-0227
Unmanned 8.6m sailing boat adrift off Shiogama, Sendai (Honshu east coast)
No longer in forceReceived 17 Oct 2026, 08:30 UTCArchived 18 Oct 2026, 01:21 UTC
Warning text
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No longer in forceAn unmanned sailing boat (SAZANKUROSU2), length 8.6 metres, reported anchored/adrift in the vicinity of 38-19.0N 141-05.5E near Sendai Shiogama Port. Sighted at 171700 JST Oct and promulgated by 2nd Regional Coast Guard at 171730 JST Oct. Mariners should be aware of a potential navigation hazard in the area and proceed with caution.
Keep clear and navigate with caution; maintain a proper lookout for the drifting unmanned sailing boat.
- Type
- Drifting object · severity moderate
- Feed
- Wrecks, obstructions and drifting objectsAll warnings of this kind on the map, or as an API feed.
- Location
- Honshu, east coast; Sendai Shiogama Port (Shiogama-ku)
- Validity
- From 17 Oct 2026, 08:00 UTC
PROMULGATION TIME AT 171730 JST OCT. ... ANCHOR IN VICINITY OF 38-19.0N 141-05.5E AT 171700 JST OCT. - Activity periods
- 17 Oct 2026, 08:00 UTC - ? (Reported at 171700 JST Oct; promulgated 171730 JST Oct)
- Hazards
- adrift unmanned sailing boat
- Reported
- 17 Oct 2026, 08:00 UTC (15 days ago)The object keeps drifting: the map shows an indicative drift circle that grows with time.
Vessels involved
- SAZANKUROSU2 · unmanned sailing boat
Coast stations for this area
- RCCMRCC KitakyushuJapan172 NM from the area
- RCCMRCC YokohamaJapan186 NM from the area
- RCCMRCC NagoyaJapan208 NM from the area
- DSCDSC Station KomagamineMRCC ShiogamaJapanMMSI 004310201MF 150range 150 NM21 NM from the area
- DSCDSC Station KamaishiMRCC ShiogamaJapanMMSI 004310201MF 150range 150 NM68 NM from the area
- DSCDSC Station NyudozakiMRCC ShiogamaJapanMMSI 004310201MF 150range 150 NM120 NM from the area
- DSCDSC Station SameMRCC ShiogamaJapanMMSI 004310201MF 150range 150 NM132 NM from the area
- DSCDSC Station ChoshiMRCC YokohamaJapanMMSI 004310301MF 150range 150 NM156 NM from the area
Worked out automatically from the warning text on 17 Oct 2026, 09:27 UTC. It can be wrong: the official warning text is the authority.