More about volcanoes

Front

What is the Ring of Fire?

Back

The Ring of Fire is a horseshoe-shaped zone in the Pacific Ocean basin where a large number of earthquakes and volcanic eruptions occur due to tectonic plate movements.

Front

Name a country that lies along the Ring of Fire.

Back

Japan is one of the countries located along the Ring of Fire.

Front

What are signs that a volcano may soon erupt?

Back

Signs include earthquakes, ground tilting, and the release of gases.

Front

What type of volcanoes are no longer connected to a source of magma?

Back

Extinct volcanoes are those that are no longer connected to a source of magma.

Front

What is the term for the explosive eruption that hurls ash, hot gases, cinders, and bombs from the main vent?

Back

This is called a pyroclastic flow.

Front

What is an active volcano?

Back

An active volcano is one that has erupted recently and is likely to erupt again.

Front

What is a dormant volcano?

Back

A dormant volcano is one that has not erupted in a long time but could potentially erupt again.

Front

What is a shield volcano?

Back

A shield volcano is a broad, domed volcano with gentle slopes, formed by the eruption of low-viscosity lava.

Front

What is the difference between magma and lava?

Back

Magma is molten rock beneath the Earth's surface, while lava is magma that has reached the surface.

Front

What is a volcanic eruption?

Back

A volcanic eruption is the release of gas, ash, and molten rock from a volcano.