4th quarter ROSE

What is the primary cause of an earthquake

• movement of ocean currents

• sudden slip on a fault to built - up stress overcoming friction

• strong winds and atmospheric pressure changes

• expansion of underground water reservoirs

What role does friction play in the occurence of an earthquake?

• It prevents rocks on either side of the fault from slipping immediately

• it speeds up the movement of tectonic plates

• it reduces the intensity of seismic waves

• It causes the earthquake to stop once it starts

What is the hypocenter of an earthquake

• The point on the Earth's surface where the most damage occurs

• The deepest point of the earthquake where no waves are generated

• The point on the fault plane where the rupture begins

• The outer layer of the Earth affected by seismic waves

How is snapping of your fingers similar to the process of an earthquake?

• The motion generates heat, just like tectonic movement

• Both involve friction, pressure build up, and a suddent release of energy

• The sound of the snap mimics the underground shaking

• Both occur at a constant, predictable rate

What is the difference between the epicenter and the hypocenter of an earthquake?

• The epicenter is on the surface, while the hypocenter is deep within the fault

• The hypocenter is the location of the strongest shaking, while the epicenter is where waves stop

• The epicenter is underground, while the hypocenter is above the fault line

• There is no difference, both terms mean the same thing

What is a fault in geology?

• A large mountain range

• A thin zone of crushed rock separating blocks of the Earth's crust

• A deep hole in the
  Earth's surface

• A riverbed formed by erosion

How can scientists determine the existence of a fault?

• 
  By observing cracks in roads and buildings

• By detecting past fault movement and surface ruptures

• By measuring the temperature of the Earth's crust

• By studying cloud pattern

What is the purpose of a seismic network?

• To track the movement of clouds

• To measure ground movement during earthquakes

• To predict the weather

• To monitor eruption only

What happens when stress builds up in the rocks of the lithosphere?

• The rocks melt into magma

• The rocks form new minerals

• The rocks may fracture causing earthquakes

• The rocks expand without breaking

What type of fault movement chnges the elevation of a rock mass?

• Strike - slip fault

• Vertical fault movement

• Rotational fault movement

• Circular fault movement