Region where two tectonic plates are moving towards each other, away from each other, or alongside each other
Plate Boundary
What type of plate boundary do you get subduction zones?
convergent boundaries
What type of plate boundary has the most frequent earthquakes?
Transform boundary
A land formation at a divergent oceanic boundary
Mid-Ocean Ridge
Where are most of earth's volcanoes located?
Under the ocean at mid-ocean ridges
What are the two types of earth's crust?
What type of plate boundary forms rift valleys?
Divergent continental plates
On what type of plate boundary do you get normal faults?
Divergent Boundary
What type of plate boundary is responsible for the Himalayan Mountains?
Continental Convergent Boundary
What do you call an area where there are volcanoes that are NOT NEAR a plate boundary?
Hot Spots
A theory proposed in 1912 by Alfred Wegener that stating that the earth's continents had once been joined as a single landmass called Pangea
Continental Drift
Which type of plate boundary forms island arcs? (list type of boundary and type of crust)
convergent Oceanic-Oceanic boundary
Why are tsunami's so dangerous? (Give 1 reason)
They are hard to predict and move very quickly
What is the most dense type of earth's crust?
oceanic
What type of volcano is often considered the most dangerous?
A composite volcano
What property determines which plate will subduct below the other one?
density
What type of plate boundary do you get coastal mountain ranges with lots of volcanoes?
convergent oceanic-continental boundary
What is the name of the area underground where an earthquake starts?
focus
Deep sea trench!
What type of plate boundary is not associated with volcanoes?
What are breaks in earth's crust where blocks of rock move?
Faults
What type of plate boundary is responsible for forming the Pacific Ring of Fire?
oceanic- continental convergent boundary
What type of seismic waves are responsible for causing more damage to buildings and people?
S-Waves
Why do volcanoes and earthquakes often happen in similar places around the world?
Because they are located on plate boundaries
What do you call a volcano that will never erupt again?
Extinct