New seafloor map of the Puerto Rico Trench helps assess earthquake and tsunami hazards

Eos, Transactions, American Geophysical Union
By: , and 

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Abstract

The Puerto Rico Trench, the deepest part of the Atlantic Ocean, is located where the North American (NOAM) plate is subducting under the Caribbean plate (Figure l). The trench region may pose significant seismic and tsunami hazards to Puerto Rico and the U.S.Virgin Islands, where 4 million U.S. citizens reside. Widespread damage in Puerto Rico and Hispaniola from an earthquake in 1787 was estimated to be the result of a magnitude 8 earthquake north of the islands [McCann et al., 2004]. A tsunami killed 40 people in NW Puerto Rico following a magnitude 7.3 earthquake in 1918 [Mercado and McCann, 1998]. Large landslide escarpments have been mapped on the seafloor north of Puerto Rico [Mercado et al., 2002; Schwab et al., 1991],although their ages are unknown.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title New seafloor map of the Puerto Rico Trench helps assess earthquake and tsunami hazards
Series title Eos, Transactions, American Geophysical Union
DOI 10.1029/2004EO370001
Volume 85
Issue 37
Year Published 2004
Language English
Publisher Wiley
Contributing office(s) Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center
Description 6 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Eos, Transactions American Geophysical Union
First page 349
Last page 354
Country Puerto Rico
Other Geospatial Puerto Rico Trench
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