chapter 25 Flashcards
what is the focus of the earthquake
it is the center of the earthquake
which plate boundaries have deep earth quakes
convergent plate boundaries
what are the four types of stess that cause rocks to move
compression stress, tension stress, a shear stress, torsion stress
what are the types of deformation that can be caused do to stress
elastic deformation and plastic deformation
what happens to a material when elastic deformation is happens
it deforms when the stress is being applied but then it turns back to its original shape when there is no more stress
what happens to a material when plastic deformation is happens
it deforms then remains in that shape when force is not applied anymore
how many types of seizmic waves are there and what are they
there are three, primary waves, secondary waves, and surface waves
which wave moves at the fastest speed
P-waves
what type of wave is a p-wave
it is a compression wave
what type of material can p waves travel through
solids and liquids
what type of wave are secondary waves
they are transverse waves
what type of material can s waves travel through
only solids
which wave is more complex and causes more damage
it is surface waves
what are our two scales that help measure earthquakes
Richter scale and mercalli scale
what does the richter scale tell us about a measure
the amount of energy released
