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WorksheetsEarthquakes
Total questions: 15
Worksheet time: 4hrs 45mins
(a) are the vibrations in the ground that result from movement along breaks in Earth’s lithosphere
A(n) (a) is a break in Earth’s lithosphere where one block of rock moves toward, away from, or past another block.
The (a) of an earthquake is the location on Earth’s surface directly above the focus.
(a) waves move the ground up and down and side to side, like an ocean wave.
Scientists who study earthquakes are called (a) .
What scale uses the amount of motion at a given distance from an earthquake to determine the magnitude of the earthquake?
Modified Mercalli scale
moment magnitude scale
Richter magnitude scale
What scale measures the amount of energy released by an earthquake?
moment magnitude scale
Modified Mercalli scale
Richter magnitude scale
What scale measures earthquake intensity based on descriptions of the earthquake’s effects on people and structures?
Richter scale
moment magnitude scale
Modified Mercalli scale
What do seismic waves do as they travel through hot material?
speed up
slow down
make circles
What do scientist base a risk assessment on? (choose 4)
distance relative to plate boundaries or other fault lines
the frequency and magnitude of earthquakes in the past
the weather and temperature
building design
the geology of the region
What is the area of the fault where the earthquake begins?
focus
epicenter
plate boundary
What measures and records how much the ground moves and can be used to determine the distance seismic waves travel?
seismometer
seismogram
epicenter
What helped scientists to map the Earth's interior?
The Richter scale
the properties of seismic waves
the amount of earthquakes at a given location
What type of wave move the ground up and down and side to side, like an ocean wave? Hint - these waves cause the most destruction
Surface Waves
P-Waves
S-waves
What kind of waves move rock particles side to side and up and down at right angles to the direction that the wave travels?
Hint: these waves cannot travel through liquid (outer core)
P-waves
Surface waves
S-waves
