9.1 Natural Geologic Hazards
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What are the types of Landslides
Rockslide Debris Flow Rock Fall Earth Flow
Rockslide
Sudden and rapid and made of rock mass
Debris Flow
Rapid and made of rock fragments, soil, vegetation, and water
Rock Fall
Fast free-falling or bouncing rock.
Earth Flow
Slow and made of a mix of soil and/or rock
What causes tsunamis
The movement of water above a plate shift
What do tsunamis look like
A wave or series of waves
What causes rock deformation
Folding - How land deforms without breaking when compressed
What is the Terminology related to Folding
Anticline - The upward bend (anthill) Synclines - The downward bend
What causes Earthquakes
A sudden release of stress energy along convergent and transform boundaries
Types of Seismic Waves
P Waves S Waves Surface Waves
P Waves
A fast body wave that moves in the direction of the wave
S Waves
A slow body wave that moves side-to-side or up and down
Surface Waves
Combined P and S waves reach Earth’s surface and have a rolling motion