Laboratory Manual in Physical Geology:
Lab 16 Exam With 100% Correct
Answers
Focus of an earthquake - correct answers ✔✔Where the earthquake begins, the exact point
under the surface of the earth where the stressed rock breaks
Elastic rebound theory - correct answers ✔✔Explains how energy is released during
earthquakes. When rocks are deformed, they store energy and bend, when the inherent
strength of the rocks is exceeded, they rupture and release energy, causing earthquakes
Epicenter - correct answers ✔✔The point on the Earth's surface directly above the focus of an
earthquake
L-waves - correct answers ✔✔Love waves (named after AEH Love who discovered them) they
travel along the earth's surface (longer route than body waves) recorded after S and P waves
have arrived at seismograph
Magnitude - correct answers ✔✔Determined by measuring the amplitude of the largest seismic
wave as recorded on a seismogram
P-waves - correct answers ✔✔Primary waves, because they travel fastest and arrive at
seismographs first (they are compressional, or "push-pull," waves)
Rayleigh Wave (r-wave) - correct answers ✔✔Surface wave, slower than Love waves, move
forward, but the individual particles of material move in an elliptical pattern, named after Lord
Raleigh
Lab 16 Exam With 100% Correct
Answers
Focus of an earthquake - correct answers ✔✔Where the earthquake begins, the exact point
under the surface of the earth where the stressed rock breaks
Elastic rebound theory - correct answers ✔✔Explains how energy is released during
earthquakes. When rocks are deformed, they store energy and bend, when the inherent
strength of the rocks is exceeded, they rupture and release energy, causing earthquakes
Epicenter - correct answers ✔✔The point on the Earth's surface directly above the focus of an
earthquake
L-waves - correct answers ✔✔Love waves (named after AEH Love who discovered them) they
travel along the earth's surface (longer route than body waves) recorded after S and P waves
have arrived at seismograph
Magnitude - correct answers ✔✔Determined by measuring the amplitude of the largest seismic
wave as recorded on a seismogram
P-waves - correct answers ✔✔Primary waves, because they travel fastest and arrive at
seismographs first (they are compressional, or "push-pull," waves)
Rayleigh Wave (r-wave) - correct answers ✔✔Surface wave, slower than Love waves, move
forward, but the individual particles of material move in an elliptical pattern, named after Lord
Raleigh
