Fuente: Caltech Today
Expuesto el: miércoles, 05 de mayo de 2010 10:00
Autor: Caltech Today
Asunto: Aseismic Slip as a Barrier to Earthquake Propagation
| On August 15, 2007, a magnitude 8.0 earthquake struck in Central Peru, killing more than 500 peopleprimarily in the town of Pisco, which was heavily damaged by the temblorand triggering a tsunami that flooded Pisco's shore and parts of Lima's Costa Verde highway. The rupture occurred as the Nazca tectonic plate slipped underneath the South American plate in what is known as a subduction zone. Soon thereafter, Hugo Perfettinia former postdoctoral scholar with the Tectonics Observatory at Caltech, now at the Institut de Recherche pour le Dveloppement in Francedeployed an array of GPS stations in southern Peru. |
