Earthquakes
Boundaries
Islands
Volcano Structure
After an Eruption
100
A small burst of shaking that occurs before a large earthquake.
What is a foreshock?
100
Earthquakes most often happen at this boundary.
What is a transform boundary?
100
Volcanic island chains form when lithospheric plates move over the top of this localized upwelling of magma.
What is a hot spot?
100
Path that connects the magma chamber with the vent
What is the conduit?
100
The bowl-shaped depression formed by the collapse of a volcano after it has erupted.
What is a caldera?
200
A region on Earth's surface that is broken and where movement occurs.
What is a fault?
200
Volcanoes may form at the same type of boundary at which mid-ocean ridges are formed.
What is a divergent boundary?
200
This Hawaiian Islands are formed when this lithospheric plate passes over the hot spot nickname Pele.
What is the Pacific Plate?
200
Opening in the top of a volcano through which magma leaves.
What is a vent?
200
A mound in the vent of an erupted volcano.
What is a resurgent dome?
300
The movement of Earth's crust resulting from the release of built-up potential energy between two stuck lithospheric plates.
What is an earthquake?
300
Volcanoes can occur at convergent boundaries when this type of crust subducts at the boundary.
What is oceanic crust?
300
This island is currently forming in front of the "Big Island" of Hawaii.
What is Loihi?
300
The sideways movement of magma.
What is a sill?
300
A pool of lava that has formed in the caldera.
What is a lava lake?
400
The point below Earth's surface where a rock breaks or slips and causes an earthquake.
What is focus?
400
This type of fault occurs at a transform boundary when two plates slide past one another.
What is a strike slip fault?
400
This is a large ring of volcanoes that edge the entire Pacific Plate.
What is the Ring of Fire?
400
Magma that moves upward in a sheet.
What is a dike?
400
A mudflow that results from a volcanic eruption.
What is a lahar?
500
A point on Earth's surface right above the focus of an earthquake.
What is the epicenter?
500
This type of motion occurs at a strike slip fault and is one cause of an earthquake.
What is stick slip motion?
500
This special type of island chain is formed when islands are formed where one plate subducts beneath another at convergent boundaries.
What is an island arc?
500
A location where magma collects inside Earth.
What is a magma chamber?
500
Large pieces of glowing lava thrown form an explosive eruption.
What is a lava bomb?
M
e
n
u