Contiental Drift
The smaller unpredictable earthquake that comes behind the main earthquake.
What is an aftershock?
This makes up 2/3 of the earth.
What is the mantle?
The largest volcano that will most likely never erupt again is in Australia.
What is extinct volcano?
This scale measures the magnitude of an earthquake.
What is Richter Scale?
This is the rigid upper layer of the earth which inlcudes the earth's crust and upper most mantle.
What is the lithosphere?
This stratovolcano erupted in Washington state in 1980.
What is Mount Saint Helens?
A 1906 earthquake devastated this California city.
What is San Francisco?
This category of volcano was given to the Yellowstone volcano for its eruption which reached an 8 on the VEI.
What is supervolcano?
What were the two names given to the Northern and Southern continent plates when Pangea started to split?
What are Laurasia and Gondwanaland?
This is the point on Earth's surface above the origin of the earthquake.
What is the epicenter?
This layer of the Earth is liquid iron and nickel.
What is outer core?
This is the term for the fracture created when one plate suddenly slides past another plate.
What is a fault?
The fast-moving current of hot gas and volcanic matter that flows away from a volcano during an explosive eruption.
What is pyroclastic flow?
Name the four types of evidence that were initially used to support the Theory of Continental Drift.
What are similar shapes of coastlines (puzzle pieces) and fossil evidence, glacier evidence and mountain formations?
What is triangulation?
These are the two types of crust found on earth and what they are made of.
What is continental crust (less dense, but thicker) made of granite, and oceanic crust (more dense, but thinner) made of basalt?
The cap of a volcano that is made of built up thick lava that cannot go a great distance.
What is lava dome?