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Words of the Day: Earthquakes. Words of the Day- Monday. Stress Earthquake Fault. WOD: Definitions. Fault - fracture in Earth’s lithosphere along which blocks of rock move past each other. Stress - force applied by an object pressing on, pulling on, or pushing against another object. - PowerPoint PPT Presentation
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Words of the Day: Earthquakes
Words of the Day-Monday
StressEarthquakeFault
WOD: Definitions Fault- fracture in Earth’s lithosphere
along which blocks of rock move past each other.
Stress- force applied by an object pressing on, pulling on, or pushing against another object.
Earthquake- shaking of the ground caused by sudden movement of large blocks of rocks along faults.
Words of the Day- Tuesday
Seismic WavesFocusEpicenter
WOD: DefinitionsSeismic Wave- vibrations caused by EQ.
Focus- point underground where an EQ begins. Directly below the epicenter.
Epicenter- point on Earth’s surface directly above the focus of an EQ.
Words of the Day
AftershockLiquefactionTsunami
WOD: Definitions
Aftershock- a smaller EQ that follows a more powerful EQ in the same area.
Liquefaction- process in which shaking of the ground causes loose, wet soil to act like a liquid.
Tsunami- large water wave caused by an EQ, volcanic eruption, or landslide.
Word of the Day- Thursday
Moment Magnitude
WOD: Definition
Moment Magnitude- the total energy put out by an EQ.
Words of the Day
Shadow ZoneLag-timeSeismogramSeismograph
WOD: Definitions Shadow zone- the areas where P-waves &
S-waves do not arrive.
Lag-time- period between the arrival of P-waves and S-waves.
Seismogram- the recording made by a seismograph as it records seismic waves.
Seismograph- instrument that constantly records ground movement. (Its recording looks like wiggles in a line)
WOD: Definitions_____________- vibrations caused by EQ.
Focus- point ____________ where an EQ ___________. Directly below the ___________.
Epicenter- point on Earth’s surface directly ________the focus of an EQ.
WOD: Definitions
Aftershock- a ________ EQ that follows a more powerful EQ in the ___________________.
_______________- process in which shaking of the ground causes loose, wet soil to act like a liquid.
Tsunami- large _________________caused by an EQ, volcanic eruption, or _____________.
WOD: Definition
__________ Magnitude- the total _________ put out by an EQ.
WOD: Definitions Shadow zone- the areas where P-waves & S-
waves ___________________arrive.
______________- period between the arrival of P-waves and S-waves.
Seismogram- the ____________made by a seismograph as it records ___________ waves.
Seismograph- ___________ that constantly records ________________ movement. (Its recording looks like _______________ in a line)
WOD: Definitions Fault- ____________in Earth’s ______________
along which blocks of ___________ move past each other.
Stress- force applied by an object _________ on, ___________ on, or ____________ against another object.
Earthquake- ___________ of the ground caused by _____________ movement of large blocks of rocks along _______________.