One
the shaking and trembling that result from plate movement.
Earthquakes
a break in the rock of Earth's crust or mantle.
Fault
a structure that forms in Earth's crust when molten material or magma, reaches Earth's surface.
Volcano
type of volcano that is more of an immediate threat.
Active
an area where lava frequently erupts at the surface, independent of plate boundaries.
Hot Spot
sleeping volcano, little threat but could reawaken someday.
Dormant
molten mixture of rock-forming substances, gases, and water from the mantle.
Magma
measurement of an earthquake's strength based on seismic waves and movement along faults.
Magnitude
the force that acts on rock to change its shape or volume.
Stress
pulls on Earth's crust, stretching the rock to make it thinner, especially at the point halfway between the two pulling forces.
Tension
rock is being pushed in opposite directions where it could bend or break.
Shearing
squeezes rock until it bends or breaks.
Compression
a wave or series of waves produced by an earthquake or landslide.
Tsunami
dead volcano, very little threat of eruption.
Extinct
magma that reaches the surface.
Lava
Compression can produce this type of fault.
Reverse Fault
Shearing can produce this type of fault.
Strike-Slip Fault
Tension can produce this type of fault.
Normal Fault
Type of fault is common at a Convergent Boundary.
Reverse Fault
Once a volcano erupts what are the finest particles released?
Ash
Mount Fuji in Japan is an example of what type of volcano?
Composite Volcano
What type of volcanic eruption has thin and runny magma?
Quiet Eruption
Give an example of a Strike-Slip Fault.
San Andreas Fault
What type of seismic wave travels the fastest?
Primary Waves
What type of rock fold bends downward?
Syncline