GEOG Ch 3

Vertical movement of rock occurs in all of the following faults EXCEPT: - reverse. - dip-slip. - strike-slip. - normal

What is a blind fault?

Which of the following statements is FALSE about P-waves? - P-waves are a type of compressional wave that moves with a push/pull motion. - P-waves can move through solid, liquids, or gases. - P-waves cause the most damage in an earthquake. - P-waves are the fastest of the waves.

Which seismic waves are the last to reach a seismograph station?

(T/F) P-waves are the fastest seismic waves produced.

During an earthquake, strain is released and then accumulated again until the next earthquake. This is a statement about the...

The distance to the epicenter of an earthquake is found by

In general, there is more ground shaking from an earthquake with: - decreasing depth from the surface and increasing distance to the epicenter. - decreasing depth from the surface and decreasing distance to the epicenter. - increasing depth from the surface and increasing distance to the epicenter. - increasing depth from the surface and decreasing distance to the epicenter.

(T/F) The San Andreas Fault is considered a potentially active fault because it has not produced a major quake in over 500 years.

What is the difference between earthquake intensity and magnitude?

Which scale is most appropriate to describe earthquake damage to structures and effects on people?

(T/F) There is 20 times more ground shaking associated with a magnitude 7 earthquake on the Richter scale compared to a magnitude 5 earthquake.

Mexico City was built on mud deposits. How will this affect the earthquake hazard there? - The ground will be susceptible to supershear, which will cause sonic booms that increase damage. - Earthquakes will be dampened there. - There will be more earthquakes due to brittle rupture of the mud. - There will not be any earthquakes there. - Earthquakes shaking will be increased.

Strong earthquakes have been felt in Southeast Missouri, what causes these earthquakes? - megathrust earthquakes from a convergent plate boundary - megathrust earthquakes from a divergent plate boundary - Dip-slip faults from subduction - Strike-slip faults from a transform plate boundary - These are intraplate earthquakes.

Which of the following is NOT an effect of earthquakes? - Fires - Liquefaction - Ground rupture - Volcanoes - Disease

(T/F) All earthquakes in the U.S. are situated on the West Coast near the San Andreas Fault.

Which kind of material would be prone to liquefaction during an earthquake? - Dry compacted clay - Water-saturated sand - Sedimentary rock with horizontal layering - Volcanic rock that is very porous - Any earth material (rock or sediment) that is saturated with water

Which of the following is the most realistic approach to minimizing earthquake hazards? - Bolt together each side of a fault to prevent future earthquakes - Require all new construction to be built on landfill - Publicize any prediction and immediately evacuate cities near the earthquake zone - Legislate strict building codes that require strong and flexible buildings - Require any city near a plate boundary to be relocated

Which of the following is NOT a reasonable way for communities to deal with the earthquake hazard?

If you knew that an earthquake was coming, where is the safest place to be?