Earth shakes because the earth is splitting in pieces.
the earth shakes
shakes
The ground shakes, and the earth is displaced along a section of the earthquake fault.
An earquake are shakes and jiggles in the huge pieces of the Earth.
Shakes the Earth, causes fires, kills people
when the earth shakes
when the earth shakes
an earthquake
Since it shakes the earth it moves the Earth and could make it all bumpy.
During an earthquake, the Earth's surface shakes hardest at the epicenter, which is the point on the surface directly above where the earthquake originated. The seismic waves radiate outwards from this point, causing the most intense shaking near the epicenter.
An earthquake is called so because it describes the shaking of the ground caused by a sudden release of energy in the Earth's crust. The term "earthquake" combines "earth," referring to the ground, and "quake," which means to shake or tremble.
I do not know but the earth shakes when a earthquake happens...