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.

Why can seismic waves be used to determine structures and materials within the earth?

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