GOL 105 EXAM 2 LATEST
Types of seismic waves - ANSWERS-L waves, P waves, S waves and R
waves
L waves - ANSWERS-The L (Love) waves move through rock solids on
the surface. It causes the ground to move in a snake-like motion.
R waves - ANSWERS-The R (Rayleigh) waves move through solids at
the surface. It causes the ground to wave in an up and down, rolling
motion.
S waves - ANSWERS-The S (shear) waves travel a little slower than P
waves and arrive after the P waves. They can only go through solids
only; they bounce off when they reach liquids. It is an up and down
motion and the particle motion is perpendicular to the wave travel.
P waves - ANSWERS-The P (pressure) waves travel really fast and
arrive before the S waves. They can travel through anything; solids,
liquids and gas. The particle motion is in the direction that the wave
travels.
focus vs. epicenter - ANSWERS-Focus: underground location of rock
rupture and split
Epicenter: point at surface directly above focus
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, GOL 105 EXAM 2 LATEST
Reading a seismogram - ANSWERS-Differing speeds and character of P
and S waves (among others)
S-P curves - ANSWERS-The farther you are from epicenter the more
time between P wave and S wave arrival
finding an epicenter to a quake - ANSWERS-Need at least 3 stations,
then find P minus S wave that shows distance from epicenter → draw
circle around 3 stations & see where they all intersect
damage associated w/ quakes - ANSWERS-Liquefaction, landslides &
avalanches and tsunamis
Ground shaking dependent on? (4) - ANSWERS-1. Magnitude of quake
2. Distance from focus
3. Frequency of waves
4. Substrate consistency
How tsunamis form? - ANSWERS-From an earthquake or submarine
landslides
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PAGE 2
Types of seismic waves - ANSWERS-L waves, P waves, S waves and R
waves
L waves - ANSWERS-The L (Love) waves move through rock solids on
the surface. It causes the ground to move in a snake-like motion.
R waves - ANSWERS-The R (Rayleigh) waves move through solids at
the surface. It causes the ground to wave in an up and down, rolling
motion.
S waves - ANSWERS-The S (shear) waves travel a little slower than P
waves and arrive after the P waves. They can only go through solids
only; they bounce off when they reach liquids. It is an up and down
motion and the particle motion is perpendicular to the wave travel.
P waves - ANSWERS-The P (pressure) waves travel really fast and
arrive before the S waves. They can travel through anything; solids,
liquids and gas. The particle motion is in the direction that the wave
travels.
focus vs. epicenter - ANSWERS-Focus: underground location of rock
rupture and split
Epicenter: point at surface directly above focus
END OF
PAGE 1
, GOL 105 EXAM 2 LATEST
Reading a seismogram - ANSWERS-Differing speeds and character of P
and S waves (among others)
S-P curves - ANSWERS-The farther you are from epicenter the more
time between P wave and S wave arrival
finding an epicenter to a quake - ANSWERS-Need at least 3 stations,
then find P minus S wave that shows distance from epicenter → draw
circle around 3 stations & see where they all intersect
damage associated w/ quakes - ANSWERS-Liquefaction, landslides &
avalanches and tsunamis
Ground shaking dependent on? (4) - ANSWERS-1. Magnitude of quake
2. Distance from focus
3. Frequency of waves
4. Substrate consistency
How tsunamis form? - ANSWERS-From an earthquake or submarine
landslides
END OF
PAGE 2
