Earthquakes1

Front

What is liquefaction?

Back

Liquefaction is a temporary state in which loose soil and rock materials take on the properties of quicksand, often occurring during an earthquake.

Front

What is the most destructive type of seismic wave?

Back

The most destructive type of seismic wave is a surface wave.

Front

What type of wave can travel through solids, liquids, and gases?

Back

P-waves can travel through solids, liquids, and gases.

Front

Which seismic wave is the fastest?

Back

P-waves are the fastest type of seismic wave.

Front

What instrument is used to measure earthquakes?

Back

A seismograph is the instrument used to measure earthquakes.

Front

What are P-waves?

Back

P-waves, or primary waves, are seismic waves that compress and expand the ground and can travel through solids, liquids, and gases.

Front

What are S-waves?

Back

S-waves, or secondary waves, are seismic waves that move the ground up and down or side to side and can only travel through solids.

Front

What are surface waves?

Back

Surface waves are seismic waves that travel along the Earth's surface and are responsible for most of the damage during an earthquake.

Front

What is an aftershock?

Back

An aftershock is a smaller earthquake that occurs in the same area after a larger earthquake.

Front

What is a seismic gap?

Back

A seismic gap is a section of an active fault that has not experienced an earthquake for a long time, indicating a potential for future earthquakes.