Earthquakes and Volcanoes

What type of volcano is fairly symmetrical and has both

layers of lava and pyroclastic deposits?

• composite

• shield

• cinder cone

• caldera

Which of the following is NOT a factor in how violently or

quietly a volcano erupts?

• magma’s concentration of dissolved gases

• magma’s composition

• magma’s temperature

• magma’s depth inside a volcano’s vent

What is an earthquake’s epicenter?

• the place on the surface directly above the focus

• a spot halfway between the focus and the surface

• any spot along the nearest fault

• the spot below the focus

Where do most earthquakes occur?

• in the mountains of Africa

• around the edge of the Pacific Ocean

• around the edge of the Atlantic Ocean

• on the western lowlands of Europe

A tsunami can occur when there is vertical movement at

a fault under

• a small inland lake.

• a mountain range.

• the San Andreas Fault.

• the ocean floor

What is a fault?

• a place on Earth where earthquakes cannot occur

• a fracture in Earth where movement has occurred

• the place on Earth’s surface where structures move during an earthquake

• another name for an earthquake

Which of the following can cause damage days or months after a large earthquake?

• the arrival of surface waves.

• an aftershock.

• a tsunami.

• liquefaction.

The formation of the Hawaiian Islands is one example of

• volcanoes forming over a hot spot.

• continental drift.

• the Ring of Fire.

• volcanoes forming along plate boundaries

Pahoehoe is

• volcanic ash

• lava with a rough, chunky surface.

• cooler, slower-moving lava

• fast-moving, hot lava.

Name the type of volcano illustrated in diagram ?

• composite

• cinder cone

• caldera

• shield