The Ocean Observatories Initiative (OOI) is an integrated system of marine scientific infrastructure with coastal and open ocean assets located in the North and South Atlantic and Pacific. Some infrastructure have surface expressions (lighted buoys), while others are subsurface. All locations of OOI assets are reported to the U.S Coast Guard.
Site Specific Information
PA = Precautionary Area
KCE = Known Cable Exposure area
VAA = Voluntary Avoidance Areas
Site Information and VAA
Cabled Infrastructure (RSN & Endurance)
Precautionary Areas on shelf near Pacific City, OR
Submarine Cable Exposures near shore of Pacific City, OR
VAA and Submarine Cable Exposures in the vicinity of Hydrate Ridge and Base of Margin
Voluntary Areas of Avoidance in the vicinity of Mid-Plate and Axial Seamount
Submarine Cable Exposure in the vicinity of Stonewall Bank (Pacfic City, OR)
A flash drive of Cabled Array locations is available upon request from the OFCC
Local Notices to Mariners
Gliders/AUV – Atlantic: 508-548-1401; Pacific: 541-207-5690
For non-emergency inquiries, please contact the Help Desk.
Voluntary Avoidance Areas (VAA): the area around a mooring position or site center that we ask mariners/fishers to voluntarily avoid to prevent gear entanglement.
Precautionary Area (PA)*: Areas where the cable is not buried to target depth or where the depth of burial is not known.
– The PA safety zone radius in all depths is a minimum 0.25 nm (463m).
– OFCC fishermen are not restricted from fishing with gear on the seabed in these PA areas.
– PAs are an advisory.
Known Cable Exposure (KCE)*: Areas where the submarine cable is on the surface, suspended, minimally buried or visibly exposed in a wide trench.
– At depths <300 fms (550m), restriction within 0.25 nautical miles (~463m) of the exposure.
- At depths >300 fms (550m), the KCE safety zone is enlarged to 0.40 nm (~741m).
– OFCC fishermen are not to tow fishing gear on the seabed inside these safety zones.