The Mona submarine canyon geomorphology is highly complex yet unexplored. The complex seafloor is the result of oceanographic and tectonic forces that are actively forming and reshaping the landscape of the region. The canyon is located in an intricate and irregular tectonic region at the boundary between the Caribbean and North American plate tectonics, where east–west transversing subductionSeptentrional Fault ends in an approximately 1,000-meter-deep hole west of the landform.[4][5]
Size comparison between the Mona Canyon, the Puerto Rico Trench and other famous canyons
^Mann, Paul, Active Tectonics and Seismic Hazards of Puerto Rico, the Virgin Islands, and Offshore Areas, Special Paper, Geological Society of America, 2005 p. 118 - 119 ISBN978-0-8137-2385-3