Earthquakes Quiz Flashcards
Three types of waves
Primary, Secondary, and Surface Waves
True or false: S-waves can travel through liquids
False
As depth increases…
…density increases
Four types of stress
compressive, tension, shear, and torsion stress
Elastic Rebound is…
the sudden release of strain energy
A fault is…
A crack in Earth’s crush where rock has moved
Object is squeezed or shortened
Compressive stress
Object stretched or lengthened
Tension stress
Object is stretched and pulled in opposite directions
Shear stress
Object is twisted
Torsion stress
What are the two surface waves?
Love waves and Rayleigh waves
Waves that move in a circular motion
Rayleigh waves
Waves that move up and down or side to side
Love waves
Waves that move up and down
Primary waves
Waves that move side to side
Secondary waves
The fastest seismic waves are…
Primary waves
How are Rayleigh waves created?
They are created from the cross section of P and S waves
What are the two body waves?
Primary and Secondary waves
Narrow and shallow quakes are at…
Divergent boundaries
Deep and wide quakes are at…
Convergent boundaries
elastic deformation
when material deforms as stress is applied but goes back to original state when stress is removed
plastic deformation
when material deforms as stress is applied and remains in new shape once stress is removed
the focus is….
point of origin of an earthquake
epicenter is…
the point on the surface directly above the focus
