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1958 Ecuador–Colombia earthquake
The 1958 Ecuador–Colombia earthquake struck the coastal regions of Ecuador and Colombia on January 19 with a surface wave magnitude of 7.6 at 9:09 local time. Approximately 30 percent of Esmeraldas (Ecuador) was destroyed, including the children's department of the hospital, where three children died. In all, 111 persons died and 45 were injured as a result of the earthquake. Water mains were broken and power transmission lines were damaged. The Esmeraldas-Quito highway collapsed at many places. Many other roads of the country were made impassable by cracks and fallen trees. According to press reports, a landslide from the slopes of the Andes at Panado village buried a hundred people. The earthquake was destructive in the cities on the northern coast of the country and was strong from Latacunga to Quito, Ibarra and Tulcán. It was felt at Guayaquil.〔(【引用サイトリンク】url=http://www.ngdc.noaa.gov/nndc/struts/results?eq_0=4160&t=101650&s=13&d=22,26,13,12&nd=display ) ()〕
==Tectonic setting==
Ecuador and Colombia lie above a convergent boundary where the Nazca Plate is being subducted beneath the South American Plate. The convergence rate is 55 mm per year and the subduction is significantly oblique to the boundary. This part of the plate boundary has been the location of a series of large historical earthquakes, including the Mw=8.8 1906 Ecuador-Colombia earthquake, which ruptured 5–600 km of the plate interface. Since 1906 there have been three major earthquakes that together have re-ruptured this same segment, in 1942, 1958 and 1979.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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