Chile is an earthquake prone country. Big one when I was 6 years old. Most if not all of the earthquakes I had to endure during my childhood were while in our apartment on a 7th floor. The first time I experienced an earthquake as an adult, 22 y.o., while on the ground I almost sh*t on my pants, as that was the first time I had heard the telluric sound that an earthquake carries with it.
http://en.wikipedia.org/wiki/List_of...s_by_magnitude
http://en.wikipedia.org/wiki/1960_Valdivia_earthquake
http://en.wikipedia.org/wiki/2010_Chile_earthquake
Excellent job done by Wikipedia.