Earth Science -Earthquakes Review

Earth is made of separate slabs of rigid rock called _______.

Which seismic wave travels across Earth's surface?

Measures the energy released during the earthquake.

Earthquakes occur when a rock that has been stressed releases strain energy and moves along a fault.

Secondary waves cause particles inside Earth to move in which direction?

Surface waves cause particles inside Earth to move in which direction?

Primary waves cause particles inside Earth to move in which direction?

The sudden movement or vibration of the ground

What fault in California is an example of a transform plate boundary?

Of the four stresses on plate boundaries, which stress causes objects to squeeze and shorten?

Ranks earthquakes according to intensity of the amount of damage they cause.

The age of the seafloor crust increases with distance from the ridge.

What is the sudden release of strain energy as rock moves along a fault called?

Occurs when a material changes shapes as a stress is applied and remains in the new shape when stress is removed

Nearly 50% of all earthquake occur along plate boundaries.

Where do deep earthquakes tend to occur?

The point on Earth's surface directly above the focus.

The point of origin for an earthquake

There are two types of convergent plate boundaries.

What are the body waves that travel through Earth?

Where do shallow depth earthquake tend to occur?

Occurs when a material, such as rock, deforms as stress is applied but snaps back into its original shape.

What is a crack in Earth's crust along which rock has moved?

a convergent plate boundary where two continental plates of equal density collide and do not subduct.

Calculate the distance in kilometers, of seafloor spreading, if the rate is 2.5 cm/yr over 100 millions years.

Which seismic wave is the fastest?

Earthquake scientists are known as geologists.

Name the process where thermal energy from Earth's interior drives plate motion.

Three main types of plate boundaries are: subduction, divergent, and transform.

When a thick and buoyant continental plate meets a thin, dense oceanic plate that dives beneath the continent.

True or False? Waves that travel outward in all directions from the point where the strain energy is released.

Elastic rebound produces energy called seismic waves that travel in Earth.

The boundaries between two plates that are moving apart from each other.

Earthquakes usually occur in well-defined zones called tectonic plate boundaries

What famous mountain range is an example of continental collision?

This is type of boundary is where plate slide horizontally past each other in opposite directions.

What is an example of a well-know divergent plate boundary on the seafloor in the Atlantic Ocean.

The bottom of the plate is made of Earth's mantle and the top of the plate is made of continental or oceanic crust

When an object is deformed, a form of energy called ____ ____ can be stored in the object