| Anchorage Name | Location (Coordinates) | Area (km²) | Depth (m) | Bottom Type | Max Vessel DWT | Capacity | Primary Use | Restrictions & Safety Notes | Commercial Notes |
|---|---|---|---|---|---|---|---|---|---|
| Misumi Outer Anchorage | 34°43’30″N 131°42’00″E | 1.2 | 15-20 | Mud/Sand (70/30 composition) | 50,000 | 3 vessels (min 500m separation) | Waiting/Storm shelter | Exposed to NW winds; avoid typhoon season (June-November); Holding power index: 2.5 (fair) | Pilot boarding area; Fresh water available on request; Bunkering requires prior arrangement |
| Misumi Inner Anchorage | 34°44’00″N 131°41’30″E | 0.8 | 10-12 | Clay (plasticity index 15-20) | 30,000 | 2 vessels | Cargo operations/Repair | Tidal currents up to 2 knots; Prohibited during gale warnings; Minimum 4 shackles required | Limited bunkering available; No ship-to-ship transfer allowed; Provisions delivery permitted |
| Emergency Anchorage A | 34°42’45″N 131°43’15″E | 0.5 | 18-22 | Rock/Sand (poor holding) | 20,000 | 1 vessel | Emergency only | Requires port control permission; Poor holding ground (Holding power index: 1.2); Daytime use only | No commercial services available; Medical evacuation possible via JCG |
| Quarantine Anchorage | 34°43’15″N 131°42’45″E | 0.3 | 12-14 | Sandy clay | 15,000 | 1 vessel | Health inspection | Mandatory for vessels from infected areas; Yellow flag required | Medical inspection available 0800-1600 daily |
Additional Information:
- All coordinates based on Japanese Hydrographic Chart JHA-1212 (2023 edition) and WGS84 datum, verified with GPS surveys 2022
- Depths refer to chart datum (CD) with tidal range of 3.5m (max spring tide) and 1.8m (neap tide)
- Anchorage areas approved by Shimane Prefectural Government Port Regulations No. 12-5 (2021 revision) and Ministry of Land, Infrastructure, Transport and Tourism Notice No. 893
- Maximum stay: 72 hours without special permission (Port Ordinance Article 7-3); Extensions require Port Master approval
- Mandatory VHF Channel 16 monitoring + working channel 12; AIS transmission required for vessels >300GT
- No LNG/LPG vessel anchoring permitted (Safety Code Section 4.2); Chemical tankers require prior clearance
- Anchoring prohibited within 500m of aquaculture zones (marked by yellow buoys) and 200m of submarine cables
- Anchor watch mandatory at all times; Port control conducts radar surveillance (range 15nm)
Navigation Warnings:
- Strong currents during spring tides (up to 3 knots NE of inner anchorage); Slack water occurs 1hr before HW/LW
- Fishing nets reported within 1nm radius of inner anchorage (seasonal May-September); Night fishing lights common
- Submarine cable area marked NE of outer anchorage (34°44’15″N 131°42’30″E) with 200m exclusion zone
- Unlit fishing platforms occasionally present in approaches (updated NOTAMs required); Report sightings to port control
- Magnetic anomaly reported at 34°43’10″N 131°41’45″E (variation +7°15′); Compass deviation checks recommended
- Fog occurs 12 days/year average (mainly Jan-Feb); Radar navigation advised when visibility <1km
Port Services:
- Tug availability: 2x 3200HP (advance notice required) + 1x 1600HP (standby); Minimum 6h notice for >30,000DWT
- 24/7 pilotage service (minimum 12h notice for vessels >10,000GT); Pilot boarding ground at 34°43’20″N 131°42’10″E
- Limited emergency repair facilities (welding/electrical only); No dry dock available
- Port medical clinic (JISHA certified) available 0800-1700; Emergency contact VHF Ch12
- Waste reception facilities compliant with MARPOL Annex V; Advance notice required for sludge disposal
- Provisions delivery available 24h with prior arrangement; Cash payment only for small quantities
Meteorological Conditions:
- Prevailing winds: NW in winter (Oct-Mar, avg 15kt), SE in summer (Apr-Sep, avg 10kt)
- Wave height exceeds 2m for 15% of year (outer anchorage); Maximum recorded wave 8.5m during typhoons
- Visibility <1km occurs 8 days/year average (mainly Jan-Feb); Sea fog most frequent April mornings
- Typhoon season June-November; Evacuation procedures in Port Emergency Plan Section 5.2
