Seismic Waves 101

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To Do	To Answer
Read about seismic waves	Describe a seismogram and a seismograph and why they are important in the study of earthquakes. Explain the difference between surface waves and body waves. What are the types of body waves? How do they compare? How is the severity of an earthquake measured? What is the difference between the Richter and Mercalli scales? Describe the differences between a "large" and "small" California earthquake. Describe what someone would feel standing above an epicenter with each type of wave passing by. What is the shadow zone?
Watch the video on seismic waves	How do seismic waves tell us about the layers of the earth? What is the difference between a hypocenter and an epicenter?

Use the attachment to organize information about seismic waves.