Layers of Earth and earthquakes
Plate Tectonics
Earthquake Waves
Formation of Volcanoes
Results and products of volcanoes
Volcano Diagram
100
The beginning point of an earthquake
What is a focus?
100
The idea that the earth's crust is made up of moving plates is called what?
What is the theory of plate tectonics?
100
Vibrations of energy that flow from the focus of an earthquake
What are seismic waves?
100
A gradually sloping volcano that has mile eruptions and a continuous flow of lava.
What is an active shield volcano?
100
The type of rock formed from the cooling of lava
What is igneous rock?
100
The part of the volcano labeled A
What is a crater?
200
Magma that breaks through earth's surface
What is lava?
200
A fault that occurs when rocks push together, forcing a section of rock upward.
What is a thrust or reverse fault?
200
The point on the earth's surface directly above the focus of an earthquake.
What is the epicenter?
200
A large, layered volcano, that has been active in the past, but the volcano is currently inactive?
What is a dormant composite cone volcano?
200
Places where water is heated by magma
What are hot springs?
200
The part of the volcano labeled B
What is a vent?
300
Breaks in the earth's surface along which rock can move.
What are faults?
300
A fault that occurs when rocks move apart, forming a gap
What is a normal fault?
300
Slower destructive wavesthat occur on the surface of earth.
What are surface waves?
300
A volcano expected to erupt again, bowl-like crater and only one main vent.
What is an active cinder cone volcano?
300
A cloud of volcanic fog formed from volcanic gas and ash.
What is vog?
300
The part of the volcano labeled C
What is lava?
400
The crust and upper mantle together make up this
What is the lithosphere?
400
A fault that occurs when rocks move horizontally past each other.
What is strike-slip fault
400
Fast moving waves that occur beneath the surface of the earth
What are body waves?
400
The area around the Pacific Ocean where many volanoes occur.
What is the Ring of Fire?
400
An avalanche-like emission of red-hot dust and gases from a volcanic eruption, killed the people of Pompeii.
What is pyroclastic flow?
400
The part of the volcano labeled D
What is a magma chamber?
500
This device detects, times, and measures the movements of earth.
What is a seismograph?
500
Three causes of earthquakes
What are the buildup and release of energy when two plates move or shift, molten rock moving under a volcano, and when large amounts of earth are removed or added?
500
How an earthquake's magnitude (strength) is measured.
What is the Richter Scale?
500
Two causes of volcanic eruptions
What are hot spots and heated magma rising to the surface?
500
When part of a mountain collapses from volcanic activity, causing mud and rock fragments to surge down the mountain.
What is debris flow?
500
The part of the volcano labeled E
What is a side vent?