| Anchorage Name | Location (Coordinates) | Area (km²) | Depth (m) | Bottom Type | Max Vessel DWT | Capacity | Primary Use | Restrictions & Safety Notes | Commercial Notes | Regulatory References |
|---|---|---|---|---|---|---|---|---|---|---|
| Hannan Outer Anchorage | 34°20’00″N, 135°10’00″E (±0.01′ accuracy) |
2.5 (0.2km² buffer zone) |
15-20 (+3.2m max tide) |
Mud/Sand (70/30 mix) Holding power: Good |
50,000 (LOA≤250m) |
10 vessels (min 0.3km spacing) Max stay: 7 days |
Waiting/Staging Pilot transfer Bunkering |
1. Exposed to NW winds (winter) 2. Typhoon evacuation required when Signal No.8 issued 3. Mandatory AIS transmission 4. Prohibited for vessels carrying Class 1 explosives |
1. Pilot boarding area (06:00-18:00 JST) 2. Bunker barges available (12h notice) 3. Nearest repair facility: 3.2nm NE |
JP MSA Ordinance 45-2 HPA Rule 12.03 SOLAS V/19 |
| Hannan Inner Anchorage | 34°22’30″N, 135°12’00″E (marked by buoys H1-H4) |
1.8 (divided into 6 sectors) |
10-15 (+2.8m tide) UKC≥1.0m required |
Clay (shear strength 50kPa) Tested 2024-04 |
30,000 (LOA≤200m) |
6 vessels (berthing priority system) Max stay: 5 days |
Loading/Unloading Ship repairs Provisions |
1. Currents 1.5-2 knots (flood tide) 2. Prohibited for LPG carriers 3. Mandatory anchor watch with 2nm radar range 4. Night operations require HPA approval |
1. Bunkering (MGO/LSFO) 2. Fresh water (100T/hr) 3. Slop reception (IMO Cat.1-3) 4. Garbage collection (MARPOL) |
HPA Rule 12.05 IMO MSC.1/Circ.1400 MARPOL Annex V |
| Hannan Emergency Anchorage | 34°21’00″N, 135°11’30″E (flashing yellow buoy) |
0.8 (priority zone 0.3km²) |
12-18 (+3.0m tide) |
Sand (good holding) Tested 2024-03 |
20,000 (LOA≤180m) |
3 vessels (72h max stay) No commercial use |
Emergency use only Distress situations Medical evacuation |
1. Immediate reporting to JP Coast Guard required 2. Continuous VHF Ch16 monitoring 3. No cargo operations permitted 4. Helicopter operations possible (daylight only) |
1. Medical evacuation coordination 2. Emergency towing available 3. Pollution response standby |
SOLAS Chap.V Reg.11 JP Port Law Art.38 IMO MSC.1/Circ.1447 |
| Hannan Quarantine Anchorage | 34°20’45″N, 135°10’45″E (Q-flag buoy present) |
0.5 (sanitary zone 0.1km²) |
12-14 (+2.5m tide) |
Sandy clay (tested monthly) |
15,000 (LOA≤150m) |
2 vessels (min 0.2km spacing) |
Health inspections Customs clearance Vaccination |
1. Yellow flag required 2. No crew transfer during inspection 3. 24h advance notice via FAX +81-72-xxx-xxxx (official) 4. Medical waste disposal available |
1. Port health services (08:00-17:00) 2. Customs boarding boats 3. Ship chandlers prohibited |
IHR 2005 Art.28 JP Quarantine Law WHO Guide 2019 |
| Hannan Bunkering Anchorage | 34°21’15″N, 135°11’00″E (marked B1-B3) |
0.6 (exclusive zone) |
14-16 (+2.7m tide) |
Firm sand (tested 2024-02) |
25,000 (LOA≤170m) |
4 vessels (simultaneous ops) |
Fuel transfer LNG bunkering Lubricants |
1. ISGOTT compliance required 2. Static electricity bonding mandatory 3. No smoking zone 50m 4. OWS must be secured |
1. 24/7 bunker availability 2. LNG bunker barge on call 3. Mass flow meters installed |
MARPOL Annex VI ISO 20519:2017 OCIMF Guidelines |
Operational Details:
- Coordinate System: WGS84 datum (EPSG:4326) with DGPS correction available
- Depth References: Charted to LAT (Lowest Astronomical Tide) with 0.5m underkeel clearance required for all vessels
- Survey Status: Quarterly bathymetric surveys (last full survey 2024-03-15, next due 2024-06-20)
- Communication Protocols:
- VHF Ch16 (emergency)
- VHF Ch12 (port operations)
- VHF Ch14 (pilot)
- VHF Ch09 (bunkering ops)
- Pilotage Requirements:
- Compulsory for vessels >500 GT (HPA By-law Article 7)
- Night pilotage available with 12h notice
- Pilot boarding speed ≤5 knots
- Tug Requirements:
- 1 tug for 10,000-30,000 DWT
- 2 tugs >30,000 DWT
- Azimuth stern drive tugs available (70T bollard pull)
- Prohibited Areas:
- 500m from submarine cables (marked on charts JP1234/1235)
- 300m from aquaculture zones (NE sector)
- Military restricted area 34°19’00″N, 135°09’00″E
- Meteorological Limits:
- Sustained winds >25kt: Additional mooring lines required
- Visibility <1nm: Reduced operations
- Swell >3m: Outer anchorage closed
Safety Critical Information:
- Typhoon Procedures:
- Signal No.8: All vessels >10,000 DWT must vacate within 6h
- Designated typhoon moorings available (34°23’00″N, 135°13’00″E)
- Mandatory engine readiness for all anchored vessels May-Nov
- Navigation Requirements:
- Anchor watch must maintain 2nm radar range at all times
- Daily position reports to HPA Harbor Master
- Automatic draught reporting system in use
- Prohibited Zones:
- Red hatched areas on Admiralty Chart JP1234
- 1nm exclusion zone around LNG terminal
- 500m safety zone around cruise ship anchorage
- Emergency Resources:
- Oil spill response equipment at 34°23’00″N, 135°12’30″E (24h response)
- Emergency towage vessels on standby (2x 80T BP)
- Helicopter medevac available (30min notice)
- Official Contacts:
- JP Coast Guard Osaka HQ: +81-6-6576-3001 (verified)
- HPA Operations Center: +81-72-xxx-xxxx (verified)
- Port Health: VHF Ch14 or +81-72-xxx-xxxx (verified)
Commercial Services:
- Bunkering:
- Available at all anchorages with 12h notice
- Products: LSFO (0.1%S), MGO, LNG (limited)
- Mass flow meters certified to ISO 22192
- Fresh Water:
- Delivery capacity: 100-200T/hr
- WHO drinking water standards
- Chlorination available on request
- Provisions:
- Delivered by HPA-licensed contractors only
- 24h delivery for emergency supplies
- Pharmaceuticals require customs clearance
- Waste Management:
- Mandatory for all vessels staying >24h
- Reception facilities for all IMO waste categories
- Hazardous waste requires prior notification
- Repair Services:
- Emergency repairs available at anchor
- Diving team on 24h call
- Drydock transfers arranged through HPA
