hazardous offshore area
C18478
concept
A hazardous offshore area is a marine zone beyond the shoreline that poses significant risks to navigation, operations, or safety due to natural or man-made dangers such as rough seas, strong currents, submerged obstacles, or industrial activities.
Observed surface forms (6)
- marine hazard ×4
- hazardous waterway ×3
- hazard to navigation ×2
- hazardous maritime area ×1
- nautical hazard area ×1
- underwater hazard ×1
Instances (13)
- Nantucket Shoals
- Eddystone Rocks via concept surface "hazard to navigation"
- Columbia River Bar via concept surface "hazardous waterway"
- Graveyard of the Pacific via concept surface "nautical hazard area"
- Lynmouth Sands rocks via concept surface "marine hazard"
- Portland Race via concept surface "marine hazard"
- Shambles via concept surface "marine hazard"
- The Rip via concept surface "hazardous waterway"
- Reefs of the Channel Islands via concept surface "hazard to navigation"
- Spring Point Ledge via concept surface "underwater hazard"
- Swelly Rock via concept surface "marine hazard"
- The Swellies via concept surface "hazardous waterway"
- near Seven Stones reef via concept surface "hazardous maritime area"