Key terms to do with earthquakes and volcanoes

The point when the ground breaks in an earthquake

A sleeping volcano (volcano's can be dormant for up to 600 years)

Mudslide caused by the substances on the volcano eg rocks, clay which has been melted and runs down the volcano causing a type of mudslide

Scale used to measure the magnatude of an earthquake

molt and rock held in the magma chamber

a trimer after a big earthquake

is on the san andreas fault line

the pacific plate moves nw by 6cm per year

north american plate moving nw by 1cm per year