8.2
What plate is denser
Oceanic
What type of plate movement cause a trench to from
Divergent
Which volcano formation has the steepest slope
Cinder
What wave is the first wave in a earthquake
The P wave
True or false is amplitude equal to magnitude
True
What happens during collision
Continents collide making a larger continents
What kind of plate movement causes a slab pull
Convergant subduction
Positive effects of volcanic activity
Cleans up the surrounding area
Creates new land
Is a important part of the rock cycle
What wave causes the most damage
A surface wave
How do find the S-P interval
Subtract the P wave from the S wave
What is kind of plate boundary is St Helen on
It is on oceanic continental subduction
Describe what happens during mantle convention
magma is is rises and less dense so it moves away from the ridge
What percent of viscosity does Hawaiian volcanoes have
50 percent because they are shield volcanoes
What is the focus of an earthquake
It's where the earthquake originates from
How do we locate the epicenter
Use 3 different stations to find the overlap