Geography - Natural Hazards

HideShow resource information
What is an island arc?
When two oceanic plates collide one is subducted. An oceanic trench is formed. As a plate is subducted it drags sediment and water from the sea bed. Mixture melts in magma. The temp increases causing magma to rise. Converts to chain of volcanoes.
1 of 5
What is a strato volcano?
Over time, eruptions of a volcano erupt ash, lava and other volcanic debris. This builds up over time.
2 of 5
What is a primary hazard?
Hazards that occur as a direct impact of the volcano or earthquake.
3 of 5
What is a secondary hazard?
Hazards that occur due to a change in environment following an earthquake/volcano.
4 of 5
Give some primary hazards of volcanoes.
Lava Flows, Pyroclastic Flows,
5 of 5

Other cards in this set

Card 2

Front

What is a strato volcano?

Back

Over time, eruptions of a volcano erupt ash, lava and other volcanic debris. This builds up over time.

Card 3

Front

What is a primary hazard?

Back

Preview of the front of card 3

Card 4

Front

What is a secondary hazard?

Back

Preview of the front of card 4

Card 5

Front

Give some primary hazards of volcanoes.

Back

Preview of the front of card 5

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Natural hazards resources »