Exam 8: Earthquakes and Earths Interior

What are two major and very useful differences between P- and S-waves?

If you could drill from the outer surface of Earth all the way to the center,you would pass through the major divisions of Earth: the ____________________,the ____________________,and finally the ____________________.

The magnitude of an earthquake measures:

The two major types of seismic waves are ____________________ waves and ____________________ waves.

Describe the three categories of earthquakes based on focal depth and what causes them.

The odd behavior of many kinds of animals is a scientifically accepted method used to predict earthquakes.

The analyses of the alignment of the planets and moon are a scientifically accepted method used to predict earthquakes.

Explain how geologists calculate the distance between the epicenter of an earthquake and a given seismograph.

The structural layer that the P- and S-wave low-velocity zone in the upper part of the mantle closely corresponds to is the ____________________.

What causes intraplate earthquakes?

For every integer increase of magnitude on the Richter Scale,____________________ times more energy is released by the earthquake.

How does elastic rebound theory explain when earthquakes occur?

What is the biggest cause of Earth's internal heat?

We know that the mantle is not molten because P-waves can travel through it.

The name of the point on Earth's surface vertically above the hypocenter is the ____________________.

Only 5% of all earthquakes occur within the:

According to the elastic rebound theory:

The separation of the continental crust and its submergence beneath the sea are significant sources of danger created by earthquakes.

Aftershocks do not cause much damage.

What happens along an earthquake fault after rupturing begins? How is the length of time of ground shaking related to the length of the fault?