There are 50,000 reported earthquakes in the world each year . World 's biggest believed to have been the 1960 Valdiva Quake in Chile , measuring 9.5 on Richter scale . The walls tremble and then the floor . Japan has had more than 60 major quakes . Comment:
There are 50,000 reported earthquakes in the world each year . World 's biggest believed to have been the 1960 Valdiva Quake in Chile , measuring 9.5 on Richter scale . Japan has had more than 60 major quakes . Comment: