NEW
Font size
WorksheetsChapter 9: Earthquakes and Volcanoes
Total questions: 23
Worksheet time: 20mins
Large and explosive volcanic eruptions, such as the one shown below, can change climate because
ash and gas that erupt high into the atmosphere can reflect sunlight.
the magma that erupts is hot.
volcanic ash keeps Earth from losing its heat.
volcanic mountains block solar radiation.
Which type of fault is shown in the diagram above?
normal
shallow
reverse
strike-slip
At a divergent plate boundary such as a mid-ocean ridge, you should expect to find
high viscosity lava and normal faults.
low viscosity lava and normal faults.
high viscosity lava and reverse faults.
low viscosity lava and reverse faults.
Approximately how much more ground motion is recorded on a seismogram from a magnitude 6 earthquake compared to a magnitude 4 earthquake?
10 times more
100 times more
50 times more
1,000 times more
Most of the volcanic activity on Earth occurs
along transform plate boundaries.
at hot spots.
along mid-ocean ridges.
within the crust.
Which can show the amount of energy released by an earthquake?
the Modified Mercalli scale
a lag-time graph
the Richter magnitude scale
the moment magnitude scale
High energy earthquakes occur
away from divergent plate boundaries.
on transform plate boundaries.
on convergent plate boundaries.
away from plate boundaries.
A lag-time graph illustrates the relationship between the time it takes a seismic wave to travel from the earthquake epicenter to a seismometer and the
distance between the earthquake and the seismometer.
earthquake intensity.
size of the fault.
earthquake magnitude.
Which feature is labeled with the letter A in the diagram above?
a caldera
a chain of hot spot volcanoes
a mid-ocean ridge
a subducting tectonic plate
The location of an earthquake can be determined from seismic data recorded by at least
five seismometers.
two seismometers.
one seismometer.
three seismometers.
What is an earthquake?
a fault at a convergent plate boundary
a wave of water in the crust
energy released as rocks break and move along a fault
the elastic strain stored in rocks
Where do seismic waves originate?
above ground
epicenter
focus
seismogram
Which term describes a fast-moving avalanche of hot gas, ash, and rock that erupts from an explosive volcano?
ash fall
cinder cone
lahar
pyroclastic flow
According to the map, where is the earthquake epicenter?
Berkeley
Los Angeles
Mammoth Lakes
Parkfield
The Richter scale registers the magnitude of an earthquake by determining the
The amount of energy released by the earthquake.
amount of ground motion measured at a given distance from the earthquake
amount of energy released by the earthquake.
descriptions of damage caused by the earthquake
type of seismic waves produced by the earthquake.
Along which type of plate boundary do the deepest earthquakes occur?
divergent
transform
passive
convergent
Earthquakes occur along the San Andreas Fault. Which is an example of this type of plate boundary?
convergent
divergent
passive
transform
The figure below shows the Hawaiian Islands, formed by a hot spot. Which island is the oldest?
Hawaii
Maui
Kauai
Oahu
Hot spot volcanoes ALWAYS
appear at plate boundaries.
form above mantle plumes.
remain active.
erupt in chains.
What do the circles represent in the map of seismic activity illustrated above?
the distance between waves
the distance to an earthquake epicenter
the seismic wave speeds
the wave travel times
What type of boundary is formed when two lithospheric plates move away from each other?
Divergent Plate Boundary
Transform Plate Boundary
Convergent Plate Boundary
Subduction Plate Boundary
In what physical layer of earth are the convection currents found which move the lithospheric plates?
Asthenosphere
Crust
Mantle
Outer Core
What feature forms at a divergent boundary between two continental lithospheric plates?
Deep Sea Trench
Mid Ocean Ridge
Rift Valley
Folded Mountains
