The Arequipa (Peru) earthquake of june 23, 2001

Abstract

The Arequipa earthquake of 23 June 2001 has been the largest earthquake (Mw = 8.3) occurred in the last century in southern Peru with a maximum intensity of VIII (MM scale). Focal mechanisms of main shock and three larger aftershocks have been studied, showing thrusting solutions for main shock and two aftershocks and normal motion for the event of July, 5. The rupture area has been obtained from distribution of aftershocks. The occurrence of the Arequipa earthquake is related with the convergence process between the Nazca and South Americaplates.