16.+What+are+earthquakes?+17.+Where+do+most+earthquakes+occur?

some places were fault lines Are south America ,north America, Australia, Africa, Philippines, India, Caribbean and Haiti

[]

Most earthquakes occur along the edge of the oceanic and continental plates Earthquakes usually occur were two plates are running into each other Or sliding past each other. **Normal faults ** are the cracks where one block of rock is sliding downward and away from another block of rock. These faults usually occur in areas where a plate is very slowly splitting apart or where two plates are pulling away from each other. A normal fault is defined by the hanging wall moving down relative to the footwall, which is moving up.

Earthquakes are caused when tension is release from the rocks in the earth’s crust and upper mantel. Plates under the earths surface move and push against each other Earthquakes mostly occur in places were there is a fault line