Plate boundaries
Where two tectonic plates meet.
Plate boundary
Difference between magma and lava.
Lava - above ground
Magma - below ground
A numerical scale used to measure the magnitude (strength) of an earthquake.
Richter scale
Convergent
What plate boundary is likely to make volcanoes?
Convergent
The measure of the energy released during an earthquake.
Magnitude
When TP move away from eachother.
Divergent
A location where a plume of hot magma rises through the mantle to form volcanic activity.
'hot spot'
The location within the Earth where an earthquake begins. The energy released here causes seismic waves.
Focus
When TP slide past eachother.
Transform
A cloud of ash particles, rocks and gases that are blasted from a volcano
Ash cloud
The point on Earth's surface directly above the focus of an earthquake, where the shaking is usually strongest.
Epicentre
An area where one tectonic plate is forced beneath another into the mantle.
Subduction Zone
Where the molten rock is stored beneath the ground.
Magma chamber
What eaves are faster P-waves or S-waves?
P-waves