Difficulty Swallowing (Dysphagia) 1  Print. 2  PDF. 3  Email. 4  Bookmark You must be signed in to bookmark pages. Sign in now. 5  Notes You must be signed into your pro account to make notes. Sign in now. 6  Listen Listen. 7  Translate Translate.
Miner Claudio Yanez applauds as he is carried away on a stretcher after being rescued from the collapsed San Jose mine where he had been trapped with 32 other miners for over two months in 2010 near Copiapo, Chile.
The Worldâs largest earthquake with an instrumentally documented magnitude occurred on May 22, 1960 near Valdivia, in southern Chile.It was assigned a magnitude of 9.5 by the United States Geological Survey. It is referred to as the Great Chilean Earthquake and the 1960 Valdivia Earthquake.umerous large earthquakes have occurred in this area before and after the May 22, 1960 event. The earthquake was preceded by four foreshocks greater than magnitude 7.0. The largest was a magnitude 7.9 earthquake one day before that caused significant damage in the Concepcion area.