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The Enriquillo–Plantain Garden fault zone (EPGFZ or EPGZ) is a system of coaxial left lateral-moving strike slip faults which runs along the southern side of the island of Hispaniola, where Haiti and the Dominican Republic are located. The EPGFZ is named for Lake Enriquillo in the Dominican Republic where the fault zone emerges, and extends across the southern portion of Hispaniola through the Caribbean to the region of the Plantain Garden River in Jamaica. == Geology == The EPGFZ shares approximately half of the relative motion between the North American and Caribbean tectonic plates with the Septentrional-Oriente fault zone which runs along the northern side of Hispaniola. Both faults merge into the Cayman Trench to the west. The fault accommodates about 20.6±1.66 millimeters of lateral motion per year (mm/yr). Additionally, a component of compression is present as the North American Plate pushes toward the southwest. This results in vertical deformation manifest in the mountainous terrain of Hispaniola. Some researchers believe that the EPGFZ and the Septentrional-Orient fault zone bound a microplate, dubbed the Gonâve Microplate, a area of the northern Caribbean Plate that is in the process of shearing off the Caribbean Plate and accreting to the North America Plate. == Earthquakes == * A magnitude 7.5 earthquake struck southeastern coast of Jamaica in 1692, almost destroying Port Royal * An earthquake struck along the southern coast of Hispaniola in 1751. * A magnitude 7.5 earthquake struck Port-au-Prince in 1770. * The 1907 Kingston earthquake damaged every building in Kingston, Jamaica.〔 * A magnitude 7.0 earthquake occurred near Port-au-Prince, Haiti as a result of seismic activity along blind thrust faults associated with this fault zone on January 12, 2010. Other historical large earthquakes in 1860, 1761, 1684, 1673, and 1618 are also likely attributed to the EPGFZ, though none of these have been confirmed in the field as associated with this fault. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Enriquillo–Plantain Garden fault zone」の詳細全文を読む スポンサード リンク
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