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Map showing epicenters of M≥5 earthquakes up to February 4, 2020, in the 2019–2020 Puerto Rico swarm sequence of earthquakes. The region has been seismically active since ancient times. The Great Northern and Great Southern fault zones that cross the main island of Puerto Rico laterally have been active since the Eocene epoch.
Bathymetry of the northeast corner of the Caribbean Plate showing the major faults and plate boundaries; view looking south-west. The main bathymetric features of this area include: the Lesser Antilles Volcanic Arc; the old inactive volcanic arc of the Greater Antilles (Virgin Islands, Puerto Rico, and Hispaniola); the Muertos Trough; and the Puerto Rico Trench formed at the plate boundary ...
The Puerto Rico Trench is located on the boundary between the Caribbean Sea and the Atlantic Ocean, parallel to and north of Puerto Rico and the Virgin Islands. The oceanic trench, the deepest in the Atlantic, is associated with a complex transition between the Lesser Antilles subduction zone to the south and the major transform fault zone or ...
2019–20 Puerto Rico earthquakes. Starting on December 28, 2019, [7] and progressing into 2020, the southwestern part of the island of Puerto Rico was struck by an earthquake swarm, [8] including 11 that were of magnitude 5 or greater. [9] The largest and most damaging of this sequence was a magnitude 6.4 Mw, which occurred on January 7 at 04: ...
Limited, localized. The 2010 Aguas Buenas earthquake, also referred to as the 2010 Christmas Eve earthquake (Spanish: Temblor de Nochebuena de 2010), occurred on December 24 at 7:43 p.m. local time in Aguas Buenas, Puerto Rico. [1] It measured 5.1 on the moment magnitude scale and had a maximum Mercalli intensity of VI (Strong).
A major transform fault extends from the Puerto Rico trench along the northern coast of Puerto Rico and on through the Cayman Trough to the coast of Central America. Approximately 50 miles ESE of Fajardo, Puerto Rico, past the island of Vieques and approximately 20 miles south of Saint Thomas in the U.S. Virgin Islands , can be found the Virgin ...
Desecheo Island sits on the Desecheo ridge, a narrow east–west ridge that extends west from the northwest corner of Puerto Rico. The ridge forms the southern boundary of the 13,123 ft (4,000 m) deep Mona Canyon which extends toward the north to the strike slip fault zones which bound Puerto Rico and Hispaniola. The east face of the rift has a ...
The San Andreas Fault is a continental right-lateral strike-slip transform fault that extends roughly 1,200 kilometers (750 mi) through the U.S. state of California. [1] It forms part of the tectonic boundary between the Pacific Plate and the North American Plate. Traditionally, for scientific purposes, the fault has been classified into three ...