Earthquakes

Front

Stress that pushes a mass of rock in two opposite directions is called _________.

Back

shearing

Front

What can cause damage days or months after a large earthquake?

Back

an aftershock

Front

In a strike-slip fault, the rocks on either side of the fault slip past each other sideways with little _______. Options: noise, shaking, up-or-down motion, movement

Back

up-or-down motion

Front

Which type of stress force produces reverse faults?

• compression
• shearing
• tension
• deformation

Back

compression

Front

The point beneath Earth's surface where rock breaks under stress and triggers an earthquake is called the ______.

Back

focus

Front

The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like an accordion are called _______. Options: S waves, P waves, Surface waves, Mercalli waves.

Back

P waves

Front

A force that acts on rock to change its shape or volume is called _________.

Back

stress

Front

S waves are also known as ________. Options: primary waves, secondary waves, surface waves, focus waves

Back

secondary waves

Front

Compared to P waves and S waves, surface waves move _____.

Back

slower

Front

Which scale would most likely be used to tell how much earthquake damage was done to homes and other buildings? Options: the Richter scale, the Mercalli scale, the moment magnitude scale, the seismic scale

Back

the Mercalli scale