The Caribbean region sits on a tectonic plate nestled between the North and South American plates with the Nazca and Cocos plates located to the west and the Atlantic plate to the east. How this seismic activity relates to the roughness at the plate interface is only studied in a few places, where the subduction interface has been imaged with seismic reflection data, swath bathymetry and/or 2D wide-angle seismic data (There is also an ongoing debate about the exact position of the evaporites within the sedimentary sequence, and how many evaporite sequences are present. During the subduction, a flat slab itself may be deformed, or buckling, causing sedimentary hiatus in marine sediments on the slab. The Nazca Plate, which underlies most of the southeastern Pacific, is being subducted beneath most of the west coast of South America at a rapid rate of 80 to 100 millimetres per year.

The subducting International Handbook of Earthquake and Engineering Seismology, Part BStrike-Slip Fault Systems Along the Northern Caribbean Plate BoundaryUK Overseas Territories in the Northeast Caribbean: Anguilla, British Virgin Islands, MontserratWorld Seas: an Environmental Evaluation (Second Edition)Atwater, Fuentes, Halley, ten Brink, & Tuttle, 2014ScienceDirect ® is a registered trademark of Elsevier B.V.

This main evaporitic sequence is thickest in the western part of the northern region. Map outlining the Nazca and surrounding plates in the southeast oceanic. 54 relations.

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This determined the formation of a volcanic island arc between Costa Rica and Panama, originating the Talamanca-Tabasara mountain range and The west coast of South America is one of the most seismically active regions of the world. Karen S. Harpp, Dennis J. Geist, in Reference Module in Earth Systems and Environmental Sciences, 2019. Subduction of the This high seismicity is known since Diego de Almagro and Pedro de Valdivia conquered this territory in the first half of the 16th century. The Leeward Islands included in this western arc include Saba to the north, Montserrat and Basse Terre (Guadeloupe) to the south. The southeastern boundary to the Cayman Trough is, however, not a passive system.

The Nazca Plate or Nasca Plate, named after the Nazca region of southern Peru, is an oceanic tectonic plate in the eastern Pacific Ocean basin off the west coast of South America. The ongoing subduction, along the Peru–Chile Trench, of the Nazca Plate under the South American Plate is largely responsible for the Andean orogeny.

The main island is 25 km long and 5 km wide with the Territory having a total land area of 91 kmVolcanism resumed following extinction of the outer island arc chain along the line of what is now considered the inner volcanic arc. It also produced the largest earthquake ever recorded by seismographs in 1960. Multiple working hypotheses about the cause of flat slabs are subduction of thick, buoyant oceanic crust (15–20 km) and trench rollback accompanying a rapidly overriding upper plate and enhanced trench suction. A nearly continuous chain of volcanoes lines the margin of South America, and…

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