Pichilemu is located close to a geological fault ( Pichilemu Fault ) , which is according to reports between the city and Vichuquén at 15 km depth , 40 km in length and 20 km wide . It is not known whether the fault was formed during the March 2010 earthquake or if it was just reactivated
March 2010 earthquake
2010 Pichilemu earthquake
Pichilemu