Plates, volcanoes, earhquakes

What type of wave is this?

What is a trench?

If the p wave arrival time is 5 and the s wave arrival time is 10, what is the lag time?

What is the name of the fault below California?

What type of foci usually causes the most damage?

What scale measures intensity?

What type of volcano is this?

Most earthquakes occur

What changes the speed and direction of seismic waves?

Who came up with the theory of sea floor spreading?

Which of the following were not pieces of evidence for Wegener's theory?

What is the sudden return of a rock back to its original shape?

What type of wave is this?

What was the first piece of evidence in the idea of continental drift?

What type of wave is this

Which of the following will cause the most deaths and injuries in an earthquake?

What can S waves travel through?

What type of waves do the most damage?

What is intensity of an earthquake?

What is it called when two plates slide past each other?

What moment magnitude scale express?

Where does the first motion of an earthquake occur?

What is the theory that explains why and how continents move?

What is an area of volcanic activity, under the crust that stays in place as the plate moves?

Which volcano has runny, not viscous lava?

What is the name of the instrument used to detect and record seismic activity?

What is it called when two plates moves toward each other?

Which wave has an elliptical motion?

What is a wall of water that can be caused by earthquakes?

Which type of volcano usually has one long eruption?

Which is not a cause of tsunamis?

What do scientists calculate using the arrival time of P and S waves?

What is a location where several faults are located known as?

What volcano erupted in 1980 ?

Which wave moves the fastest?

What is an area where seismic waves can't be detected?

What type of wave is this?