1.The epicenter of an earthquake can be located using from at least three seismographic stations. 2.The Richter scale magnitude can be calculated using the of the wave traced out on a seismogram.
3.Rayleigh waves and Love waves are confined to the .
Match the term on the left with its definition on the right.

TermDefinition
4. Seismic shadow zonea. A process used to determine the epicenter of an earthquake
5. Triangulationb. A surface wave that causes horizontal motion
6. Rayleigh wavesc. Areas on the earth’s surface where waves traveling through the earth don’t arrive due to refraction
7. Love wavesd. A surface wave that causes vertical motion
Respond to the following based on your reading.
8.Why can seismic waves be used to determine structures and materials within the earth?