Volcanoes
Earthquakes
Plate Boundaries
Waves
Random
100
An opening in the Earth's crust through which molten rock and other material erupt
What is volcano
100
Small tremors that may occur months after an earthquake
What is aftershocks
100
Earthquakes occur at this type of boundary
What is divergent, convergent and transform fault
100
Shock waves that are sent out when an earthquake occurs
What is seismic waves
100
The deepest part of the ocean
What is Marianna's trench OR Challenger's Deep
200
This is where most volcanic eruptions occur
What is on plate boundaries
200
Where earthquakes are rarely found
What is away from the edges of tectonic plates.
200
This plate is being subducted under the North American Plate
What is Juan De Fuca
200
Are the names of the two shockwaves
What is primary and secondary
200
What is formed on land when two plates diverge?
What is rifts
300
Can be caused by an underwater volcano
What is a tsunami
300
This gets built up between plates when they get stuck against each other
What is pressure
300
Iceland was formed by this
What is divergent boundaries
300
The fastest travelling of the shockwaves
What is primary
300
This was used by Aboriginal peoples as a tool
What is Obsidian
400
Part of the mantle that has a much higher temperature than the rest
What is a hot spot
400
This causes earthquakes at divergent boundaries
What is magma
400
The Himalayan mountains were created by these types of plates (NOT PLATE BOUNDARIES)
What is continental and continental
400
Can be felt at the Earths surface (type of wave)
What is primary and secondary
400
Proves that there are tremendous forces at work deep within the Earth
What is earthquakes and volcanoes
500
This island was created from a hot spot
What is Hawaii
500
An earthquake with 100x the magnitude of a magnitude 1 earthquake
What is a magnitude 3 earthquake
500
This is the origin of the shockwaves released from an earthquake
What is the focus
500
What type of wave help scientist to determine that the Earths core was solid
What is primary
500
The point on the surface directly above the focus.
What is epicentre
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