Earthquake Hazards and Tsunamis

Vibrations created by earthquakes that can travel through the earth are

• plate boundaries

• seismic waves

• convection currents

• fault lines

What are cracks in the earth's crust where movement can take place and where earthquakes occur?

• faults

• compression

• shear stress

• aftershock

This type of stress is at convergent boundaries, where rocks are squeezed together, causing them to fold or fracture.

• tension stress

• shear stress

• compression

• confining stress

This is the type of stress at transform fault boundaries where forces slide past each other in opposite directions, tearing rocks apart.

• confining stress

• compression

• shear stress

• tension stress

This is the type of stress at divergent boundaries where tension causes rocks to pull apart and lengthen.

• tension stress

• compression

• shear stress

• confining stress

Plate boundaries where the earth is being pulled apart are called ...

• convergent boundaries

• transform boundaires

• plate boundaries

• divergent boundaries

Plate boundaries where the earth is being pushed together are called ...

• divergent boundaries

• convergent boundaries

• plate boundaries

• transform boundaries

Plate boundaries where the earth is being pushed and pulled in opposite directions are called ...

• convergent boundaries

• plate boundaries

• transform boundaries

• divergent boundaries

A series of ocean waves caused by earthquakes or undersea volcanic eruptions is called ...

• an earthquake

• a tidal wave

• an eruption

• a tsunami

What is a type of hazard caused by a sudden release of stress along faults in the earth's crust?

• a hurricane

• an earthquake

• a sinkhole

• a volcano