Plate Tectonics
Plate tectonics are-
the movement or shift of continents
What type of volcano is Yellowstone?
A supervolcano
What are three types of boundaries caused by Continental Drift?
Convergent, Divergent and Transform
What scale measures an earthquake's strength using destruction?
Mercalli
What volcano is currently erupting?
Kilauea
Who discovered Continental Drift?
Alfred Wegener
Which one is more explosive, Composite or Shield?
Composite
Divergent boundaries have what type of stress?
Tension
What scale measures an earthquake's strength on the amount of energy released?
Richter Scale
How do you pronounce Eyjafjallajokull?
Ay-yah-FYAH-plah-yer-kuh-duhl
What is forming down the middle of Africa due to Continental drift?
a Rift Valley
Is a volcano with high silica and low water more or less explosive than a volcano with low silica and high water?
A volcano with high silica is more explosive
What type of stress transform boundaries?
Shearing
What measures the waves from an earthquake?
a siesmograph
How much of the U.S. will be covered by ash if Yellowstone erupts?
Almost the entirety, excluding Alaska and Hawaii
The Pacific Ring of Fire is formed from what plates?
Eurasian, Pacific and Indo-Australian plates
Why is high viscosity lava more explosive?
The air is trapped which builds more pressure causing a harsh release of pressure known as the eruption.
What are three types of faults there?
Normal, Reverse and Strike-Slip
What waves move the fastest?
Primary Waves
What are most underwater volcanos made out of?
Igneous rock
What is Continental drift caused by?
Convection Currents
Where are the most volcanoes located?
Pacific Ring of Fire
What types of stress are there for boundaries?
Compression, Tension and Shearing
What waves move only through solids?
Surface Waves
What is a Pyroclastic flow?
an avalanch of rocks, ash and hot gas