Earthquakes
The point where two plates physically touch
What is the Focus?
This type of plate moves toward each other.
What is a convergent plate?
A mountain that forms up around an opening in the crust.
What is a volcano?
The Earths outermost layer.
Crust
This part of the Earth is located approximately 4000 miles from the surface.
What is the core?
This is the point where the waves emanate from on the surface.
What is the Epicenter?
These type of plates rub against each other
What is a transform fault?
Volcanoes are most likely to occur between these two types of plates.
What are oceanic and continental plates?
All of the Earth's continents, plates and faults are part of this layer.
What is the Lithosphere?
Temperatures in this part of the Earth can reach 8000*
What is the asthenosphere?
known as push-pull waves, these waves travel in the same direction
What are P-waves?
Location where the divergent plates are growing in the Earth's oceans
Mid Ocean Ridge
This happens when molten rock builds up and explodes. Throwing ash, cinder and lava into the atmosphere.
What is a volcanic eruption?
This zone of the Earth is made up of partially melted rock.
What is the asthenosphere?
Approximately 200 of these a year are large enough to cause damage, but they happen every day.
What are earthquakes?
These travel 90* from the focus
What are S-waves?
Where magma is slowly pushed to the surface, cools, and forms new sea floor.
What is sea floor spreading?
A spot of magma under the Earth's crust, where the drifting plates cause chains of volcanic islands.
What is a "hot spot"
The solid center of the Earth
What is the core?
Recorded an 8.5 on the Richter scale.
What is the largest earthquake ever?
These two scales measure both the strength and the energy released by earthquakes
What are the richter and Micelli Scales?
This natural phenomenon is most likely to occur along a transform fault boundary.
What is an earthquake?
This type of volcano is built up from the ash, cinder and rock that burst from the Earth during an eruption.
What is a cinder cone volcano?
This layer of the Earth comes from the Greek word meaning "stone"
What is the Lithosphere?
Comes from the Latin word "vulcan"- the Roman god of fire.
What is volcano