The severity of earthquakes is measured using the [[Moment Magnitude scale]], which replaced the [[Richter scale]] with the largest quake ever recorded being 9.5 which struck Chile in 1960<ref>http://earthquake.usgs.gov/earthquakes/world/10_largest_world.php</ref>. The [[Mercalli scale]] has also been used to measure earthquakes. | The severity of earthquakes is measured using the [[Moment Magnitude scale]], which replaced the [[Richter scale]] with the largest quake ever recorded being 9.5 which struck Chile in 1960<ref>http://earthquake.usgs.gov/earthquakes/world/10_largest_world.php</ref>. The [[Mercalli scale]] has also been used to measure earthquakes. |