Vocabulary
Makes up the crust and upper mantle
Lithosphere
The idea that the earth's crust is made up of moving plates
theory of plate tectonics
fast moving waves that occur beneath the surface of the earth
body waves
where the molten rock lives under the volcano
magma chamber
Volcanic fog
Vog
the same thing as a thrust fault
reverse fault
measures an earthquakes magnitude
Richter scale
main opening at the top of a volcano
crater
Vibrations of energy that flow from the focus of an earthquake
Seismic waves
occurs when rocks move horizontally past each other
strike-slip fault
measures the destruction of an earthquake
Mercalli scale
magma that broke through the earth's surface
lava
Slower destructive waves that occur on the surface of the Earth
Surface waves
occurs when rocks push together, forcing a section of rock upward
thrust, or reverse, fault
person who studies earthquakes
seismologist
pyroclastic flow
Detects, times, and measures the movements of the Earth
Seismograph
occurs when rocks move apart, forming a gap
normal fault
point on the earth's surface directly above the focus of an earthquake
epicenter
when part of a mountain collapses, causing mud and rock fragments to surge down the mountain
debris flow