18 Questions
What causes the shaking of the ground in earthquakes?
All of the above
Which type of fault results from horizontal tension stresses in brittle rocks?
Normal Fault
At which plate boundaries do normal faults typically occur?
Divergent plate boundaries
Which type of fault results from horizontal compressional stresses in brittle rocks?
Reverse Fault
What is a special case of a reverse fault with a dip less than 45°?
Thrust Fault
Which type of fault can result in older rock layers overlying lower rock layers?
Thrust Fault
What is the defining characteristic of Blind Faults?
Ductile function of rocks above the fault
What type of motion occurs in Strike Slip Faults?
Horizontal motion
What is the main characteristic of a Left-Lateral Strike Slip Fault?
Block on the other side moves to the left
Where is the Epicenter of an earthquake located?
At the surface directly above the Focus
What triggers earthquakes according to the text?
Movement along faults
What is the purpose of understanding the effects of an earthquake?
To reduce the impacts on vulnerable populations
What is a defining feature of Plates according to the text?
Constantly moving
What type of fault has displacement measured along the dip direction?
Normal fault
What type of fault results in hanging wall blocks above the fault plate?
Normal fault
What causes aftershocks following a main earthquake?
Re-adjustment of stress along fault system
Which seismic waves are responsible for causing ground shaking during an earthquake?
Surface waves
What is an important outcome of studying multi-hazard risk frameworks?
Enhanced preparedness and mitigation strategies
This quiz covers the types of faults and earthquake hazards, including the force of shock shaking on the Earth's surface and the movement of tectonic plates. It also discusses how volcanic activity can contribute to earthquakes.
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