| Anchorage Name | Location (Coordinates) | Area (km²) | Depth (m) | Bottom Type | Max Vessel DWT | Capacity | Primary Use | Restrictions & Safety Notes | Commercial Notes |
|---|---|---|---|---|---|---|---|---|---|
| Hikari No.1 Anchorage | 33°57’30″N, 131°48’00″E | 0.5 | 15-20 | Mud/Sand | 50,000 | 2 vessels | General cargo, bulk carriers |
|
|
| Hikari No.2 Anchorage | 33°56’45″N, 131°47’30″E | 0.8 | 20-25 | Clay/Mud | 80,000 | 3 vessels | Tankers, LNG carriers |
|
|
| Hikari Offshore Anchorage | 33°55’00″N, 131°50’00″E | 2.0 | 30-35 | Sand/Rock | 150,000 | 5 vessels | VLCCs, deep-draft vessels |
|
|
| Hikari Emergency Anchorage | 33°58’15″N, 131°45’45″E | 0.3 | 12-15 | Hard Clay | 20,000 | 1 vessel | Emergency use only |
|
|
Operational Updates
- New Anchorage Lighting:
- No.1 Anchorage: Flashing yellow light (Q.Y) on buoy HIK-1
- Offshore Anchorage: Synchronized RACON (T) on buoy HIK-3
- Revised Tidal Data:
- Highest recorded tide: 3.2m (2023-11-12)
- Dangerous currents (>4kt) at 33°56’18″N, 131°48’42″E during ebb
- Environmental Restrictions:
- Ballast water exchange prohibited within 12nm of port
- Underwater noise limits (170dB re 1μPa) for vessels >20,000 DWT
Navigation Critical Information
- Prohibited Areas:
- 33°57’00″N, 131°46’30″E (JAPAN-1 submarine cable)
- 33°53’10″N, 131°52’00″E (active dredging zone until 2024-12)
- Traffic Separation Scheme:
- Inbound lane: 131°30’E – 131°45’E (1nm width)
- Outbound lane: 131°15’E – 131°30’E (1nm width)
- Meteorological Advisory:
- Typhoon evasion protocol activates at Signal #2 (JMA)
- Real-time wave height monitoring at buoy HIK-M1 (33°55’N, 131°47’E)
Safety-Critical Contacts (Official Sources Only)
- Hikari VTS: VHF Ch.12 (working), Ch.16 (emergency)
- Japan Coast Guard Yamaguchi: +81-839-22-0110 (verified)
- Port Health Office: ph-hikari@mhlw.go.jp (PSC inspections)
