GEOTECHNICAL ASPECTS OF APRIL 1, 2014, M8.2 IQUIQUE, CHILE EARTHQUAKE

Abstract

The Mw 8.2 event on April 1, 2014 was triggered at 20:46:45 local time, with hypocentrallocation 19.572°S, 70.908°W, and 38.9 km deep, as reported by the Chilean NationalSeismological Center (CSN). The main seismological setting is given by the large seismic gapfrom the 1877 Mw 8.8 event (see Fig. 1.1), a swarm that took place on the rupture plane twoweeks prior to the main event, and a Mw 7.6 aftershock that might have caused more damagethan the main event (according to residents’ testimonies).