Lesson 2: Volcano Hunters

Front

Caldera

Back

A large crater...usually created by the collapse of a volcanic cone during a huge explosion

Front

Landslide

Back

A mass of rocks and earth moving suddenly and quickly down a slope.

Front

Active Volcano

Back

Volcano erupts regularly or has had at least one eruption in the last 10,000 years.

Front

Dormant Volcano

Back

Volcano has been active in the past, but has not erupted in the last 10,000 years...it may erupt in the future.

Front

Extinct Volcano

Back

Volcano has not erupted for around 10,000 years, no longer has a magma supply, and is therefore unlikely to erupt again.

Front

Lahar

Back

A mudflow carrying volcanic material down the slopes of a volcano.

Front

Pyroclastic Flow

Back

A high-density and fast moving mix of hot lava, ash, and gases ejected explosively from a volcano.

Front

Lava Field

Back

A large flat area that has been covered by lava from a volcanic eruption

Front

Tephra

Back

Rock fragments and particles ejected by a volcanic eruption

Front

Lava Bomb

Back

A piece of magma larger than 64 mm in diameter that is ejected by a volcano during an eruption