This data set was acquired with a ship-based Navigation system during Maurice Ewing expedition EW0301 conducted in 2003 (Chief Scientist: Dr. Joe Haxel). These data files are of Shapefile format and include Navigation data and were processed after data collection. Data were acquired as part of the project(s): Hydroacoustic Monitoring of Seismicity in the North Atlantic, and funding was provided by NSF grant(s): OCE01-36808 and OCE01-37164.