WorksheetsMeasurement of Earthquake
Total questions: 25
Worksheet time: 17mins
This scale is used to identify the magnitude of an earthquake and is a logarithmic scale...
Modified Mercalli Scale
Becquerel Scale
Seismicgraph
Richter Scale
When reading a seismograph and determining where it falls on the Richter Scale seismologist use the _____ to determine the magnitude of the earthquake
Wavelength
Amplitude
Frequency
Period
When we measure the magnitude of an earthquake, which scale should we use?
Richter scale
Earthquake scale
Mercalli scale
Body-wave magnitude scales
When we measure the intensity of an earthquake, which scale should we use?
Richter scale
Earthquake scale
Mercalli scale
Body-wave magnitude scales
Earthquakes that occur closer to the Earth's surface tend to be...
of larger magnitude and high intensity which cause severe damage
of larger magnitude and low intensity which cause minimal damage
of smaller magnitude and low intensity which cause minimal damage
of smaller magnitude and high intensity which cause severe damage
Which of the following is the driving force (cause) of earthquakes?
Continental drift
Plate tectonics
Subduction zones
Gravity
What is a break in the lithosphere along which movement in an earthquake has first occurred?
Earthquake
Epicenter
Fault
Focus
Where is the point at which the first movement occurs during an earthquake?
Epicenter
Focus
Fault
Plate
Where is the point on the Earth’s surface directly above the focus of an earthquake?
Epicenter
Fault
Hypocenter
Tremor
Which body waves cause particles of rock material to move at right angles to the direction in which the waves are traveling?
Body Waves
P Waves
S Waves
Surface Waves
Which of the following is the Japanese name for a sea wave produced by the displacement of the sea floor.
Liquefaction
Moho
Tsunami
Surface Wave
What is the epicenter of an earthquake?
An area along a fault which has surpassed its usual interval between any earthquake activity.
The location on Earth’s surface directly above the focus (or origin) of an earthquake.
The point along a fault, within Earth’s crust, where an earthquake originates; the point where energy is released.
The point at which faults like to gather around and discuss how stressed out they are.
Moment Magnitude is the most precise measurement of earthquake intensity because...
It is a measure of the amount of energy released by an earthquake, which is derived from the amount of displacement that occurs along the fault zone, and is more precise than the Richter scale.
It measures the height of the largest seismic wave recorded on the seismogram, and is more precise than the Mercalli Scale.
It rates earthquake intensity in terms of the damage caused to areas affected by the quake, and is more precise than the Richter Scale.
It is momentous! MOMENTOUS, I SAY!!!
Liquefaction is...
When your cereal has sat in the milk for too long and becomes soggy.
A sea wave produced by the displacement of the sea floor.
A phenomenon sometimes associated with earthquakes, in which soils and other unconsolidated materials saturated with water, behave as a liquid.
The fact that liquid exists.
What is a seismograph?
An instrument that records the vibration of seismic waves.
The record made by a seismograph.
A plot of earthquake shakiness on the y-axis and earthquake breakiness on the x-axis.
The plot of distance over the amount of time you have to RUN!
What is the correct term for an area along a fault which has surpassed its usual interval between any earthquake activity?
The when-is-an-earthquake-gonna-happen zone
Seismograph
Seismic interval
Seismic gap
What is another term for P Wave?
Compression Wave
Principal Wave
Shear Wave
Secondary Wave
Which of the following is a true statement about tectonic plates?
All tectonic plates are located at Earth's core
They're located approximately 10 meters below the surface of the ocean
They're located in the molten layer beneath Earth's crust
All of Earth's landmass rests on tectonic plates
What can you infer from the fact that tectonic plates are always moving around?
New volcanoes form every few years.
The shape and location of the continents have changed over time.
Tectonic activity probably caused the last Ice Age.
Earthquakes will continue long after hurricanes and tsunamis have stopped.
Why are surface waves more destructive to buildings than the initial seismic wave in an earthquake?
It creates more sustained motion on the surface.
It reaches the surface faster.
It reaches deeper below the surface.
It travels farther from the hypocenter.
