The earthquakes that cause the most damage usually have a shallow focus.

1
The earthquakes that cause the most damage
usually have a shallow focus.

• True
• False

2
Most earthquakes occur near plate boundaries.

• True
• False

3
Surface waves are the fastest-moving seismic
waves.

• True
• False

4
P waves move faster through liquids than through
other materials.

• True
• False

5
P waves moving through the earth can travel
through solids, liquids, and gases.

• True
• False

6
A seismograph records energy released by an
earthquake.

• True
• False

7
The place where slippage first occurs is called
an earthquakes

• focus.
• epicenter.
• magnitude.
• intensity.

8
Geologists use the elastic rebound theory to
explain

• the cause of tsunamis.
• the intensity of an earthquake.
• the magnitude of tsunamis.
• the cause of an earthquake.

9
Deep-focus earthquakes usually occur in areas in
which one plate

• slides past another.
• remains stationary against another.
• moves apart from another.
• subducts under another.

10
Which of the following generally causes the most
damage?

• shallow-focus earthquakes
• deep-focus earthquakes
• intermediate-focus earthquakes
• aftershocks

11
Which type of seismic wave travels the fastest?

• tsunami
• P wave
• S wave
• surface wave

12
Which type of seismic wave causes rock particles
to move together and apart in the same direction
as the wave is moving?

• tsunami
• S wave
• P wave
• surface wave

13
S waves can travel only through

• gases.
• solids.
• liquids.
• gases and liquids.

14
Which type of seismic wave causes rock particles
to move at right angles to the direction in which
the wave is traveling?

• S waves
• P waves
• surface waves
• primary waves

15
What is the minimum number of seismograph
stations a scientist must have data from in order
to locate the epicenter of an earthquake?

• 1
• 2
• 3
• 4

16
To determine how far away from a seismograph
station an earthquake occurred, scientists plot
the difference in arrival times between

• P and S waves.
• S and surface waves.
• P and surface waves.
• seismic waves and tsunamis.