What is the point on the Earth's surface directly above the focus of the earthquake.
100
subduction zone
What is the area where two lithospheric plates come together and one sinks beneath the other.
100
mantle plume
What is a zone of hot material that rises toward the surface from deeper in the mantle and can generate hotspots.
100
epicenter
What is the point on the Earth's surface directly above the focus of the earthquake.
100
active volcano
What is a volcano that is currently erupting or is just about to erupt.
200
elastic rebound theory
What is how earthquakes are generated. Stresses cause strain to build up in rocks until they can no longer bend elastically and they break, causing an earthquake.
200
transform fault
What is an earthquake fault; one plate slides past another.
200
focus
What is the point where rocks rupture during an earthquake.
200
dormant volcano
What is a volcano that is not currently erupting, but that has erupted in the recent past.
300
Earthquake
What is ground shaking caused by the release of energy stored in rocks.
300
subduction
What is the sinking of one lithospheric plate beneath another.
300
continental arc
What is a line of volcanoes on a continent resulting from subduction beneath the continent.
300
batholith
What is an enormous body of igneous intrusive rock, usually granitic.
300
extinct volcano
What is a volcano that has not erupted in recorded history, and is unlikely to erupt again.
400
intraplate activity
What is geologic activity that takes place away from plate boundaries.
400
continental rifting
What is a divergent plate boundary that breaks up a continent.
400
focus
What is the point where rocks rupture during an earthquake.
400
fissure
What is a crack in the ground that may be the site of a volcanic eruption.
400
fissure
What is a crack in the ground that may be the site of a volcanic eruption.