On the richter scale, a magnitude 6 earthquake is times larger than a magnitude 3 earthquake.
3
9
2
1000
100
tsunami waves on the open ocean where the seafloor is very deep
are slow and build up high.
have a short wave height (low amplitudes) and travel very fast.
easily seen and travel slowly.
have a high wave height (amplitude) and move as fast as a jet plane.
the most common cause of landslides is
earthquakes
undercutting the slope
heavy rain
wave erosion
oversteepening of the slope by establishing a road cut can cause mass wasting by
adding water to the slope unit cohesive forces are lost
removing the supportive scarp
increasing the angle until it exceeds the angle of repose
changing the angle of incidence
what is the name of the landslide landform that is a crescent-shaped mark found at the top of a slump?
ditch
scarp
toe
hummocky topography
trench
what is a translational slide? material moves down a slope parallel to the layers of the underlying bedrock.
material rotates along a rotational curved surface resulting in a bulging toe of slope.
material slowly creeps downhill over many years due to annual freeze and thaw cycles.
material moves down a slope parallel to the layers of the underlying bedrock.
material topples from a vertical cliff and tumbles down a talus slope.
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On the richter scale, a magnitude 6 earthquake is times larger than a magnitude 3 earthquake.
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