Malcolm

earth quake measured by seismograph device Richyer scale size 1 to10 using seismograph most powergul ever was in while 9.5 1960 in chile\ 10 to 20 earth quakes tha reach 7 on the scale everyu year richter scale was made in the 1930s mercalli scale was a roman scale 1 to 12 a 1 can not be deteced a 12 destorys citys 2 on richter scale is lowest that can be felt the 8 on the richter scale in chile moved the earths axis by 3 inches the next big earth quake is prideicted to be in Eurasia

bib [][] [] http://earthquake.usgs.gov/earthquakes/world/10_largest_world.php http://www.livescience.com/6932-deadliest-earthquakes-history.html