EARTHQUAKES&
VOLCANOES
REVIEW
Which seismic waves are the
fastest?
Which seismic waves are the first
to be recorded?
Which seismic waves are the second to be recorded?
Which seismic waves can only travel through
solids?
Which seismic waves are the
slowest?
Which seismic waves travel on
the surface?
What is the boundary between the crust and the mantle due to the change of speed of
seismic waves?
What are the areas called where
neither S nor P waves can be
detected?
What is the theory that says energy builds up on each side of a fault and
the rocks move slowly and then
spring back to their original shape?
Elastic rebound theory
What are small tremors that occur
after the first release of energy?
What is the area where the slippage first occurs inside
the earth?
What is the point on earth’s surface directly above the
focus?
What are the three classifications of foci?
Shallow, intermediate, and deep
What are the three major earthquake zones?
1. Pacific Ring of Fire2. Mid-ocean ridges3. Eurasian –
Mediterranean mt. belt
What is the name of the fault in California
where the Pacific plate and North
American plate slide past each other?
San Andreas Fault
(technically it’s the N. American plate and the
Juan de Fuca plate)
What is the device used to record earthquakes?
How many stations are needed to
locate an earthquake?
Which scale measures the
magnitude or the amount of energy released from an
earthquake?
What are the numbers for the Richter scale?
Arabic Numerals
They begin a 1-2 and it is an open-ended scale, based on the
seismograph’s reading.
Which scale measures the intensity or
amount of damage from an
earthquake?
What are the numbers for the Mercalli Scale?
What can be generated from an earthquake with an
epicenter on the ocean floor?
What is the molten rock beneath
earth’s surface called?
What is molten rock on earth’s surface called?
What is it called when one plate moves under
another plate and forms volcanic
mountains?
What is it called when plates move apart and magma rises to form new
ocean floor?
Sea-floor spreading
What are areas of volcanic activity
within a plate (not on a boundary)
called?
Intraplate volcanism(aka hot spot)
What is the lava that comes from quiet eruptions
called?
Mafic(aka basaltic lava)
What is the lava that comes from
explosive eruptions called?
Felsic Lava(aka rhyolytic lava)
What is mafic (basaltic) lava that
looks ropey and wrinkled when it is
hardened?
What is mafic (basaltic) lava that
is sharp and jagged when it
hardens?
What is the volcanic cone that has gently sloping sides from quiet
explosions?
Shield Cone Volcano
What is the volcanic cone that
has steep sides from explosive
eruptions?
What is the volcanic cone that is a combination of quiet and explosive
layers?
Composite Cone(aka stratocone)
What is a funnel shaped pit at the top of a vent that formed when a
volcano exploded?
What is formed when a volcanic cone collapses when emptied,
leaving behind a large basin that
can fill with water?
The name of a volcanic fragment is determined by
what?
The name of a volcanic fragment is determined by
what?
Size of the particle
What is the general name for rock
fragments that are ejected from a
volcano?
What are the two smallest types of
tephra?
What are clots of lava that spin into the air and cool to
make a spindle shape?
What is the name of the largest
volcano – on Mars?
What is the name of Jupiter’s moon that has the most active
volcanoes?
This concludes today’s fun.Please put
everything away and let’s begin
the test!!!