"We're doing another careful survey, and if we are lucky we'll see something," said Chris Moore of NOAA's Pacific Marine Environmental Laboratory where models were run of the April event that suggested Hudson Canyon may have been the tsunami source. Any changes should be easy to spot, since the last survey was just a year ago, he said. "If we are very luck we'll see a debris field."
The Okeanos Explorer uses a multibeam sonar mapping system to survey the deep ocean floor. The system uses a number of transducers pointing at different angles on either side of the ship to create a swath of signals and create 3-D maps. The ship's instruments can even penetrate some sediments and detect some features below the ocean floor, Moore explained.
Since the Okeanos Explorer conducts research (which can be watched live online) around the world, it was just good luck the ship was only a few hundred miles away when the events took place. And if that luck holds, there could soon be more to tell about the mysterious tsunami event.