Earthquake: the shaking of the Earth’s crust caused by a release of energy. Common cause: movement of the Earth’s plates.
The Focus and Epicenter of an Earthquake The point within Earth where rock under stress breaks is called the focus The point directly above the focus on.
EARTHQUAKES. Did you know… Globally, there are over 50o ooo earthquakes each year 100 000 can be felt 100 cause damage to Earth’s surface Introduction.
The Focus and Epicenter of an Earthquake
