Earthquakes & Volcanoes

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

• stress

• faulting

• folding

• syncline

Anticlines and synclines are two types of

• seismic waves

• folds

• faults

• tension

The point between Earth's surface where the crust breaks and triggers an earthquake is called

• epicenter

• fault

• focus

• magnitude

A break in the Earth's crust where slabs slip past each other is a(an)

• fold

• fault

• focus

• magnitude

An instrument used to measure and record ground movements during and earthquake is called a(an)

• seismograph

• laser-ranging device

• creep meter

• moment magnitude scale

What type of fault forms when the hanging wall moves up past the footwall?

• normal fault

• strike-slip fault

• fault block mountain

• reverse fault

The type of stress force that produces a strike-slip fault is

• compression

• shearing

• liquefaction

• tension

An area where magma melts through the crust in the middle of a plate is called

• island arc

• hot spot

• geyser

• pipe

Inside a volcano, magma collects in a pocket called a

• pipe

• caldera

• vent

• magma chamber

A volcano that is erupting or has shown signs that it may erupt in the future is called

• sleeping

• extinct

• active

• dormant