Scientists discover 1982 shipwreck in California's Monterey Bay MOSS LANDING, Calif. - Scientists exploring the edge of the Monterey Canyon have found a shipwreck on the seafloor off Santa Cruz's coast. The Santa Cruz Sentinels reports the vessel appeared first on sonar images from research on the San Gregorio Fault. A research geologist with the U.S. Geological Survey was struck by some sharper angles captured in the images and after taking a closer look spotted the barge. Video images of the vessel captured by an unpiloted submarine sent to the seafloor show the ship is the Umpqua II. The Umpqua II was a barge from Reedsport, Oregon, that grounded outside Moss Landing in 1982. It sunk more than 1 mile beneath the surface of the ocean, 12 miles southwest of Santa Cruz.