Stress
A force that acts on rock to change its shape or volume.
What is Stress
The block of rock that forms the lower half of a fault.
What is Foot wall
What are the waves produced by an earthquake?
What is seismic waves?
The shaking that results from the movement of rock beneath Earth's surface.
What is an earthquake.
A large area of flat land elevated high above sea-level.
What a plateau?
Stress that pushes masses of rock in opposite directions, in a sideways movement.
What is Shearing
The block of rock that forms the upper half of a fault.
What is Hanging wall.
The seismic waves that forms when P waves and S waves reach the surface?
What is Surface waves.
An earthquake that occurs after a larger earthquakes in the same area.
What is an aftershock?
The amount of points of data you need for a seismograph.
What is three?
Stress that stretches rock so that it becomes thinner in the middle.
What is Tension
The type of fault in which rocks on either side move past each other sideways with little up or down motion.
What is Strike-slip Fault.
The type of seismic wave that moves the ground up and down or side to side?
What is S wave?
A device that records ground movements caused by seismic waves as they move.
What is a seismograph.
The best way to protect yourself during an earthquake.
Stress that squeezes rock until it folds or breaks.
What is compression.
The type of fault where the hanging wall slides upward; caused by compression in the crust.
What is Reverse fault?
The type of seismic wave that compresses and expands the ground.
What are P waves?
What is the point beneath Earth's surface where rock breaks under stress and causes an earthquake?
What is Focus?
The state in the United States where earthquakes are most likely.
What is California?
A kind of instrument which monitors faults. (Not seismograph)
The type of fault where the hanging was slides downward, caused by tension in the crust?
What is Normal fault?
A large wave produced by an earthquake on the ocean floor.
What is a Tsunami?
What is the point on Earth's surface directly above an Earthquake's focus?
What is Epicenter?
The type of animal which is used to rescue people after an earthquake.
What is a dog?