How the Earth Was Made: the Ring of Fire
About how deep is the trench by Alaska?
21,000 Feet
How Much of the worlds volcano's are found along the ring of fire?
3/4 quarters
Why does the study of volcanoes around the Ring of Fire start in Alaska?
75% of the volcanos in the U.S.
What percent of the world's earthquakes occur around the pacific Rim/Ring of Fire?
90%
?
?
To which location are the parts of california, baja mexico and the Hawaiian islands moving?
Alaska
What is the surprising find made in the fumaroles at Mt. Lassen?
Contain C-12
What is the clue scientists found ABOUT the Ring of Fire's mega thrust earthquakes?
Depth on earthquakes
What are scientist using to track the movement of plates around the Ring of Fire?
GPS
What Happens when the gas in magma is unable to escape?
Giant explosions or violent eruptions
what is the evidence that is 1/4 mile inland regarding the seriousness of the earthquakes?
Identical resemblance of the boulders
What is the presence of hornblende in the rock an important clue?
It means there is water Present under the surface
What is the major feature that keeps the plate movement alive?
Mid-Ocean Ridges
What is the ultimate process by which plates move?
Plate Tectonics
What type of volcano was the Augustine Volcano?
Stratovolcano
What is the process that moves rock and seawater down into the earth?
Subduction
What is one of the major hazards associated WITH megathrust earthquakes?
The Thrust it has Against the earth
What role do convection currents play in plate tectonics?
They move the plates
How hot was the water coming out of the black smokers?
over 750 degrees F
