Geologic Hazards Review

The place on the surface of earth above where the ruptured rocks broke to produce the earthquake is the ___.

• Epicenter

• Focus

As the destructive power of an earthquake increases, the frequency also increases.

• True

• False

A seismograph measures motion in the ____.

• Vertical

• Horizontal

• Both Vertical & Horizontal

Earthquake intensity is measured using the Saffir-Simpson Scale

• True

• False

An active fault is one that has moved in the last 10,000 years of the Holocene Epoch.

• True

• False

We can find the location of the epicenter by using the time it takes S and P waves to arrive at three different seismic stations.

• True

• False

The type of material through which S and P waves travel makes no difference in the amount of shaking experiences at the surface.

• True

• False

In the United States, which state has the highest likelihood of experiencing an earthquake?

• CA

• PA

• FL

When the frequency of the building and the frequency of the ground shakes match, there is ___ damage on the surface.

• More

• Less

Which of the following are also linked with earthquakes?

• Landslides

• Disease

• Fires

• All of the Above