Earthquakes
Where most earthquakes occur.
What is along plate boundaries?
Magma turns to this when is rises above the earth's crust.
What is lava?
Type of volcano expected to erupt in the next 5 years.
What is an active volcano?
The point on the surface of the earth directly above the focus
What is the epicenter?
Scientists that study the movement of the earth
What are Seismologists?
This can trigger an earthquake:
When molten rock moves
Buildup of energy when plates move
Large amounts of earth are moved
A fast moving, avalanche of hot gas, ash, and rock that erupts from an explosive volcano.
What is pyroclastic flow?
A volcano that erupted in the past but is currently inactive
What is dormant?
the crust and upper area of the mantle
What is the lithosphere?
The idea that earth's surface is made up of moving plates
What is the Theory of Plate Tectonics?
Vibration of energy that flow out from the beginning point of an earthquake
What is Seismic waves?
These occur where water is heated by magma
The type of volcano with gentle slopes
What is a shield volcano?
Measures the magnitude of an earthquake's seismic waves
What is the Richter Scale?
Fault occurring when rocks move apart, forming a gap
What is a normal fault?
The ocean where the Ring of Fire is located
What is the Pacific Ocean?
Path from the magma chamber to the surface of the earth.
What is the vent?
A small, steep-sided volcano, with a bowl-like crater.
What is a cinder cone?
Seismic waves that cause the most damage at Earth's surface.
What are surface waves?
Fault occurring when rocks push together, forcing a section of rock upward
The strength of the seismic waves of an earthquake
Changes a volcano to erupt a different way in the future.
A volcano
A large, steep-sided volcano made of lava and ash.
What is a composite volcano?
When hot springs periodically blow steam and hot water in to the air
What is a geyser?
Fault occurring when rocks move horizontally past each other
What is a strike-slip fault?