Mona Canyon

Mona Canyon (Spanish: Cañón de la Mona) is an 87-mile long (140 km) submarine canyon located in the Mona Passage, between the islands of Hispaniola (particularly the Dominican Republic) and Puerto Rico, with steep walls measuring between 1.25 and 2.17 miles (2-3.5 km) in height from bottom to top. The Mona Canyon stretches from the Desecheo Island platform, specifically the Desecheo Rift, in the south to the Puerto Rico Trench, which contains some of the deepest points in the Atlantic Ocean, in the north.[1][2] The canyon is also particularly associated with earthquakes and subsequent tsunamis, with the 1918 Puerto Rico earthquake having its epicenter in the Mona Rift along the submarine canyon.[3]

NOAA computer image depicting research dives in the Monterey Canyon system

Geomorphology

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 subduction Septentrional 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

See also

References
  1. US Department of Commerce, National Oceanic and Atmospheric Administration. "Expeditions | NOAA Ship Okeanos Explorer:: Exploring Puerto Rico's Seamounts, Trenches, and Troughs: Mission Logs: April 16, 2015: NOAA Office of Ocean Exploration and Research". oceanexplorer.noaa.gov. Retrieved 2022-01-11.
  2. Mondziel, Steven A. (2007). "Morphology, Structure, and Tectonic Evolution of the Mona Canyon, Puerto Rico" (PDF). uncg.edu. University of North Carolina Wilmington – via Journal of Marine Geology.
  3. 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 ISBN 978-0-8137-2385-3
  4. US Department of Commerce, National Oceanic and Atmospheric Administration. "Expeditions | NOAA Ship Okeanos Explorer:: Exploring Puerto Rico's Seamounts, Trenches, and Troughs: Mission Logs: April 16, 2015: NOAA Office of Ocean Exploration and Research". oceanexplorer.noaa.gov. Retrieved 2022-01-11.
  5. "Sismicidad y Tectónica del Canal de la Mona: Un repaso a los principales estudios publicados – Sodogeo" (in Spanish). Retrieved 2022-01-11.

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