Question

question 7 (1 point)
______ refers to the tendency for a foundation material to lose its internal cohesion and fail mechanically during earthquake shaking.
motion slip
landslide
liquefaction
slurrying
question 8 (1 point)
the distance between a seismological recording station and the earthquake source is determined from the ______.
earthquake magnitude
arrival times of p and s waves
intensity of the earthquake
length of the seismic record

Explanation:

Question 7

Liquefaction is a phenomenon where saturated soil (foundation material) loses its strength and stiffness due to earthquake shaking, resulting in loss of internal cohesion and mechanical failure. Motion - slip is not a standard geological term in this context. A landslide is the movement of rock, debris, etc. down a slope. Slurrying is a general term for making a slurry - like substance but not specific to the described foundation failure during earthquakes.

The distance between a seismological recording station and the earthquake source (epicenter) is determined using the difference in arrival times of P (primary) and S (secondary) waves. The magnitude of an earthquake measures its size in terms of energy release. The intensity of an earthquake measures the effects of an earthquake at a particular location. The length of the seismic record is more related to the duration of the earthquake's detection at the station rather than the distance to the source.

Answer:

liquefaction

Question 8