when enough stress builds up in rock, the breaks, creating a fault.
What is a fault?
300
lava is what magma is outside the volcano and magma is inside the volcano.
What is the difference between lava and magma?
300
the epicenter is the center of an earthquake.
you find it by tracking the earthquake at three different seismic stations then find the place where all three circles around the seismic stations meet.
What is the epicenter and how do you find it?
400
A hot spot is an area where material from deep within the mantle rises and melts, forming magma.
What is a hot spot?
400
normal fault- the hanging wall slips down relative to the footwall.
reverse fault- the hanging wall moves up relative to the footwall.
strike-slip fault- rocks on either side of a strike-slip fault slip past each other.
what are the three different kind of faults and describe them.
500
Quiet eruption- an eruption with runny lava, and the lava oozes out of the volcano.
Explosive eruption- an eruption with sticky lava, and blows out of the volcano violently.
Name and describe a Quiet eruptions Explosive eruptions.
500
Mercelli scale- it was developed to rate earthquakes according to the level of damage at a given place.
Ritcher scale- made to measure an earthquakes magnitude.
name and describe the Ritcher scale and the Mercelli scale.