Earthquakes and Volcanoes

Earthquakes and volcanoes are most likely found in which locations?

• At plate boundaries
• in oceans
• in the middle of continents
• in the middle of plates

Identify the correct term for the location of point B.

• focus

• epicenter

• fault

The first seismic wave to be detected is the -

• P wave

• S wave

• Surface wave

• Body wave

An instrument used to detect and record seismic waves is the -

• telegraph

• seismograph

• seismogram

• sonar

What is the minimum number of seismic stations needed to determine the location of an earthquake's epicenter?

• One

• Thirty-seven

• Two

• Three

The Hawaiian islands have formed as the Pacific plate moves over...

• a subduction zone

• an ocean ridge

• the Aleutian plate

• a hot spot

Shaking of the ground caused by sudden movement of large blocks of rocks along a fault

• Earthquake

• Volcano

• Tsunami

• Surface waves

In an earthquake, the point underground where the rocks first begin to move

• Epicenter

• Normal fault

• Focus

• Reverse fault

These waves move along Earth's surface & cause the most damage

• Surface waves

• Primary waves

• Secondary waves

• D waves

Check the ones that apply.

The characteristics of an S-wave are:

• They travel through all matter.

• They travel through only solids.

• They are the second fastest waves.

• They are the fastest waves.

• They move in a perpendicular pattern.