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津航警187/26

3D seismic survey in Bohai Sea, area bounded by four points, 13 Jun-31 Oct

No longer in forceReceived 12 Jun 2026, 06:01 UTCArchived 09 Oct 2026, 07:33 UTC

Warning text

Positions open on the map
TJ77/26 BOHAI SEA SURVEY OPERATION CARRIED OUT BY M/V KAN TAN 409 AND BIN HAI 66 FROM 130000 UTC TO 161600 UTC JUN.ENTERING PROHIBITED IN AREA BOUNDED BY THE LINES JOINING 38-45.37N 118-46.47E,38-45.18N 118-48.53E,38-43.57N 118-48.28E AND 38-43.76N 118-46.22E.ABOVE OPERATING WATERS CONFIRMED AS SAFETY OPERATION ZONE.CAUTION ADVISED.TIANJIN MSA CHINA.

Analysis

No longer in force

A 3D seismic survey operation will be conducted in the Bohai Sea inside the area bounded by the four positions given. The activity runs from 13 June 2026 0800 UTC until 31 October 2026 2400 UTC. Mariners are advised to take notice and navigate with caution in the vicinity.

Type
Survey operations · severity moderate
Feed
Survey operationsAll warnings of this kind on the map, or as an API feed.
Location
Bohai Sea (area bounded by four positions in warning)
Validity
From 13 Jun 2026, 08:00 UTC
Until 01 Nov 2026, 00:00 UTC6月13日0800时至10月31日2400时,在38-30.22N 119-29.58E、38-38.76N 119-29.50E、38-38.82N 119-49.64E和38-30.13N 119-49.67E四点连线所围水域范围内进行三维地震采集项目作业。希各航船注意。
Activity periods
  • 13 Jun 2026, 08:00 UTC - 01 Nov 2026, 00:00 UTC (3D seismic survey operation in the polygon bounded by the four positions)
Hazards
3D seismic survey, survey vessel operations, towlines and seismic equipment in the water

Worked out automatically from the warning text on 30 Sept 2026, 00:21 UTC. It can be wrong: the official warning text is the authority.

The whole analysis comes with Lagom

This warning's analysis also has:

  • Action for mariners
  • Translations
  • Nearby lights and rescue centres

The action for mariners, the keep-clear distance, contacts, ships named, translations and the nearby lights and rescue centres come with Lagom and every higher plan, and with the API plans. The official warning text above is always free.

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