Earth moving in the convergent, divergent, and transform

form. The plates move away, together, or underneath

each other causing an earthquake.

seismic wave, makes the ground shake

after a sudden release of energy. The

release of energy comes from where the

rock breaks underground, called the focus.

And the place right above the focus is called

the epicenter.

Epicenter

Focus

Transform Boundary

S Wave

P Wave

After Shock

Rictor Scale

by the relative displacement and discontinuity

of strata on either side of a particular surface.

travels through the interior of the 

earth and is usually the second 

conspicuous wave to reach a seismograph.

through the interior of the earth and is usually

the first conspicuous wave to be recorded by a 

seismograph.

follows a major earthquake.

indicating the intensity of an earthquake.

Volcanic

Collapse

Explosion

 induced by the movement (injection 

or withdrawal) of magma.

in the underground and in mines that are caused 

by seismic waves produced from the explosion of

rock on the surface.

which results of nuclear and chemical 

devices

the geologists will know where the

earthquake originally formed.

Normal: Two rocks moving apart from each other.

Thrust(reverse): One Rock moves on top of the other rock.

each other. The less dense plate

moves over top of the more dense

plate.

Divergent: Two plates move apart from

each other and magma fills the gap that

is formed.

Transform: Two plates slide next to each

other, moving in the opposite direction.