This is a small section of a 14-minutes long narrated movie.
The movie describes the data collection at sea, presents 3-D fly-bys through
the underwater topography of the Puerto Rico trench and discusses the
scientific objectives of the mapping effort.
Transcript of this movie segment
Narrator: This is a view of the entire rift system that separates Puerto Rico on the left and the Domincan Republic on the right. We climb from the lower Mona rift, over a sill, and down into the upper Mona rift and back toward Puerto Rico. Both Rift Basins continue to deepen because of frequent earthquakes on the walls of the basins. An earthquake in 1918 in this rift drove a tsunami wave up the canyon, which turns to the left toward the coast of Puerto Rico. This produced waves of up to 5 meters or 17 feet high up the coast causing extensive damage. 110 people were killed by the combined earthquake and tsunami.
For a DVD copy of the movie, please contact:
Dr. Uri ten Brink
U.S. Geological Survey
Woods Hole Coastal and Marine Science Center
384 Woods Hole Road
Woods Hole, MA 02543