Earthquake and Volcano Quiz

An earthquake is usually caused by a ________.

• landslide

• movement along a fault

• glacier

A digital sound level meter is an instrument that detects and measures waves produced by earthquakes.

• True

• False

______ waves spread out in all directions from the focus, the point where an earthquake begins.

• transverse

• seismic

What is magnitude?

• The loudness of an earthquake

• The speed at which an earthquake travels

• The direction in which an earthquake moves

• The amount of energy released by an earthquake

______ is the height of a wave from its trough to its midpoint.

Which best describes how earthquakes and volcanoes shape the land?

• They break down the land.

• They build up the land.

• They can destroy things, but they can also build up the land.

• Only weathering and erosion can change the land.

Which part of the diagram below shows the wavelength? (circle the correct letter)

• A

• B

• C

• D

Which is the best option to make a new wave with a greater amplitude?

• By tapping the pan more softly

• By using a smaller object to disturb the water

• By tapping the pan with more force

• By pouring hot water into the pan

Why do earthquakes usually occur near plate boundaries?

• Earthquakes are caused by hot magma under the Earth's crust.

• Earthquakes occur randomly all over the world.

• Earthquakes happen due to the rotation of the Earth.

• Earthquakes result from the movement in Earth's crust plates.

Earthquakes usually occur more around ________.