Chapter 6 Test

Pulls on the crust, stretching rock so it becomes thinner in the middle

Squeezes rock until it folds or breaks

Pushes a mass rock in two opposite directions

Form when forces pull rocks apart along a divergent plate boundary; block of rock above fault moves down

Two blocks of rock slide horizontally past each other in opposite directions

Forces pushes two blocks of rocks together w/ the rock moving up

Force that acts on rock to change its shape or volume

Point on the surface directly above the focus

Point beneath earths surface where rock under stress breaks to cause earthquakes

(P wave) Compression waves that travel through solids and liquids. Compressing and expanding the material they pass through

(S wave) Only travel through solids and temporarily change the shape but not the volume of the material they pass through Move slower than P waves

Move slower than P and S waves but can produce severe ground movement with a wavelike motion

waves that carry energy of an earthquake away from the focus

Not active, but may become active

Unlikely to erupt again

Above a hot spot when magma erupts the crust

Is what makes volcanoes BOOM

Magma chamber Pipe vent Lava flows Crater

Major belt formed by many volcanoes that rim the Pacific Ocean

Weak spot in earths crust where molten material or magma comes to the surface

Fast moving lava

Slow moving lava