The intensity of an earthquake is measured using the modified Mercalli scale.
Earthquakes can cause landslides, tsunamis, and the displacement of the Earths crust.
The deadliest earthquake in history occurred in 1556 in China and killed approximately 830,000 people.
Earthquakes are caused by the sudden release of energy in the Earths crust.
The country with the highest frequency of earthquakes is Japan.