the crust and upper mantel make up the area known as the
What is Lithosphere
100
vibrations of energy that flow from the focus of an earthquake is called
What is seismic waves
100
what detects, times, and measures the movement of the earth
What is seismograph
100
What do we call the strength of a volcano
What is magnitude
200
What is the theory that the earth is made up of moving plates
What is the theory of plate tectonics
200
a fault that results when rocks push together facing a section upward
What is thrust or reverse fault
200
fast moving waves that occur beneath the surface of the earth
What is body waves
200
What occurs during a volcano when part of a mountain collapses, causing mud and rock fragments to surge down the mountain
What is debris flow
200
How can volcanoes affect people many miles away from the volcano?
What is dust and ash travel great distances, volcanoes eruptions blast dust and ash high into the air and wind carries it far easy as it falls down on earth
300
What occurs in areas where water is heated by hot magma
What is Hot Springs
300
fault when rocks move apart forming a gap
What is normal fault
300
the point directly above the the focus of an earthquake
What is epicenter
300
How can some volcanoes have more than 1 eruption
What is an eruption can change the inside of a volcano causing it to erupt differently the next time
400
The area around the Pacific Ocean where many volcanoes exist
What is the Ring of Fire
400
What are the 3 causes of an earthquake
What is 1. molten rock moves under a volcano.
2. buildup and release of energy when two plates are by each other. 3. large amounts of earth are added or removed
400
slower destructive waves on the surface of the earth
What is Surface Waves
400
Breaks in the surface of the earth in which rocks can move
What is Faults
400
large sloping sides, mild eruptions, scientist study it's lava
What is active shield volcano
500
What do we call volcanic fog
What is Vog
500
what 2 things could cause a volcanic eruption
What is 1. hot spot. 2. heated magma rises to the surface
500
What scale measures the magnitude of an earthquake
What is Richter scale
500
a volcano is expected to erupt again, bowl like crater at it's top, only one main vain
What is active, cinder cone volcano
500
large volcano, layered, has erupted in the past but is currently inactive