MDN 33/2026

SÉCURITÉ

Ecological survey with diving off Aberdeen South Typhoon Shelter for ~1 month

No longer in forceReceived 16 Feb 2026, 00:00 UTCArchived 30 Sept 2026, 12:45 UTC

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MARINE DEPARTMENT NOTICE NO. 33/2026 (Marine Works) Ecological Survey off Aberdeen South Typhoon Shelter With immediate effect and for a period of approximately one month, ecological survey will be carried out in the following locations (WGS 84 Datum): (A) 22-14.27N 114-09.83E (B) 22-14.21N 114-09.76E (C) 22-14.16N 114-09.71E (D) 22-13.96N 114-09.97E 2. The works will be carried out by one work boat. One guard boat will provide assistance. A working area of approximately 20 metres around the work boat will be established. Vessels engaged in the works will display signals as prescribed in international and local regulations. 3. The hours of work will be from 0900 to 1700 hours. No works will be carried out on Sundays and public holidays. Vessels employed for the works will not stay in the works locations outside the hours of work. 4. Diving operations will be carried out from time to time during the hours of work. Vessels navigating in the vicinity should proceed with caution and keep clear of the works locations at slow speed, bearing in mind that there are divers working in the locations. 5. A drawing showing the locations of ecological survey is attached to this Notice. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 16 February 2026 Action File Ref.: L/M No. 1/26 in MD-PD&PS-F01-075-01A-001A-P091

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Analysis

No longer in force

An ecological survey is being carried out off Aberdeen South Typhoon Shelter from 16 February 2026 for approximately one month at four specified locations. Work is by one work boat with one guard boat; a working area of about 20 metres around the work boat will be established. Hours of work 0900 to 1700 (no work on Sundays and public holidays). Diving operations will occur from time to time; vessels should keep clear and proceed at slow speed.

Type: Survey operations · severity moderate
Feed: Survey operationsAll warnings of this kind on the map, or as an API feed.
Location: off Aberdeen South Typhoon Shelter
Validity: From 16 Feb 2026, 00:00 UTC
Until 16 Mar 2026, 00:00 UTCWith immediate effect and for a period of approximately one month. The hours of work will be from 0900 to 1700 hours. No works will be carried out on Sundays and public holidays.
Activity periods: 16 Feb 2026, 09:00 UTC - 16 Mar 2026, 17:00 UTC (Daily 0900-1700 (hours given in notice). No works on Sundays and public holidays.)
Hazards: ecological survey work boat, guard boat, working area (20 metres), diving operations

Worked out automatically from the warning text on 30 Sept 2026, 11:21 UTC. It can be wrong: the official warning text is the authority.

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Action for mariners
Keep-clear distance
Ships named
Translations
Nearby lights and rescue centres

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Keywordsdiving operations divers working keep clear of typhoon

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