10PT'!!!for 6.4.2Question please help on Liquefaction action!!!!?

Question

please help !!! thanks alot!!!>"<

1.Explain the difference between the focus and epicentre of an earthquake.

2.List and describe three effects of an earthquake.

a) and b) and c)

3.Explain why L waves are described as being the most damaging of the seismic waves.

4.Imagine your house was built on material that could experience liquefaction. What two things might happen to your house after an earthquake?

a) and b)

5.Why would it be important for all coastal communities to have tsunami warning systems, even if those communities were not in known earthquake regions?

6.Which of the following towns would be most susceptible to liquefaction: a town high on a mountain, a town built on bedrock, or a town built in a river valley?

7.Describe three ways your family could make your house safer from the effects of an earthquake.

8.Author and historian Will Durant wrote, "Civilization exists by geological consent, subject to change without notice"Explain what you think he meant by this.!!

Answer 1

1.Explain the difference between the focus and epicentre of an earthquake.

epicenter is the surface wave directly above the focus.

2.List and describe three effects of an earthquake.

a) new rivers and lakes can form b) alter landformation

c) destruction of man made archetecture and natural rock slides and land slides

3.Explain why L waves are described as being the most damaging of the seismic waves. they have transverse motion (movement is perpendicular to the direction of travel, like light waves),

4.Imagine your house was built on material that could experience liquefaction. What two things might happen to your house after an earthquake?

a) sink and b) undergo a landslide

5.Why would it be important for all coastal communities to have tsunami warning systems, even if those communities were not in known earthquake regions? because earthquakes can also be caused between plates in the ocean, which can still cause a tsunami to destroy that coastal region.

6.Which of the following towns would be most susceptible to liquefaction: a town high on a mountain, a town built on bedrock, or a town built in a river valley? town built in a river valey.

7.Describe three ways your family could make your house safer from the effects of an earthquake. have your house built on bedrock, have your house grounded by beams, build your house out of flixible beams as they do in Japan.

8.Author and historian Will Durant wrote, &quot;Civilization exists by geological consent, subject to change without notice&quot;Explain what you think he meant by this. The only reason why civilization exists is because the Geological aspect of Earth is allowing civilization to.  Subject to change means that it could change its mind at any time.  Look at the eruption of Vesuvius.  Pompeii was a thriving civilization, within minuts was carmelized to ruins.