It's not my fault
The surfaces in the Earth where natural earthquakes occur.
What is a fault or plate boundary?
These seismic waves can travel through liquids and solids
What are P waves
The location along a fault where failure in the rocks is initiated.
What is the focus or hypocenter?
This magnitude scale is based on the amplitude of the largest wave and the distance from the epicenter.
What is the Richter scale?
A wall of water created when sea water is suddenly displaced.
What is a tsunami?
Type of fault associated with lateral displacement rather than vertical displacement.
What is a strike-slip fault or transform fault
These seismic waves cause the most damage to infrastructure.
What are surface waves?
The location on the ground surface where seismic waves are first felt.
What is the epicenter?
This instrument measures and records earthquake waves.
What is a seismometer or seismograph?
A type of secondary hazard caused by downed power lines and broken gas lines.
What are fires?
Movement at this type of plate boundary is associated with deep earthquakes
What is a convergent plate boundary or subduction zone?
A type of body wave that moves through compression and extension.
What is a P wave
The zone in the Earth's crust where failure occurs
What is the rupture zone?
This scale describes the intensity of earthquakes as felt by people experiencing them.
What is the modified mercalli scale?
Secondary hazard caused by blocked waterways.
What is flooding?
The category of faults that includes normal and reverse faults
What are dip-slip faults?
This type of wave is the second wave to arrive at the surface of the Earth.
What is an S-wave?
The theory that explains how energy is released during an earthquake.
What is elastic rebound theory?
This magnitude scale accounts for the amount of displacement and area of rupture along a fault.
What is the moment magnitude scale?
During liquefaction, grains loose contact due to rising _______.
What is pore pressure?
The type of fault that is produced as a result of shear stress.
What is a strike-slip fault?
The term that describes how the amplitude of seismic waves gets smaller as they travel.
What is attenuate?
The tremors that follow a major earthquake as the Earth readjusts.
What are aftershocks?
Each integer increase on the Richter Scale represents _______ times the amount of energy.
What is 33?
The size of the tsunami wave increases as it approaches shore because _______ decreases.
What is velocity?