I actually need all three of these questions answered, not just #2 and #3. Sorry
ID: 153700 • Letter: I
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I actually need all three of these questions answered, not just #2 and #3. Sorry for confusion, and thank you!
334 CHAPTER 11 Earthquakes and Earthquake Hazards EYE ON EARTH 11.1 he Calaveras Fault, a branch of the San Andreas Fault system, cuts directly through the town of Hollister, California. Rather than being "locked," this section of the fault is slowly slipping, producing noticeable offsets and damage to curbs, sidewalks, roads, and buildings. The concrete wall and sidewalk shown here were straight when they were originally constructed. Horizonta ground mot QUESTION 1 What term is used to describe the phenomenon observed in Hollister along the Calaveras eras Fault QUESTION 2 Are faults that exhibit this type of slippage considered likely to generate a major earthquake? Explain. QUESTION 3 Based on this image, does this strike-slip fault exhibit right-lateral or left-lateral motion? (Hint: See Chapter 10.) SmartFi Principl keep it r vibrates ence p a seisn M,chael Collier stronger but also lasts longer than the vibrations pro- duced by slippage along small fault segments. 11.2 Concept Checks Why do earthquake ruptures stop rather than con- tinue along the entire fault? Evidence suggests that slip- page usually stops when the rupture reaches a section of the fault where the rocks have not been sufficiently rained to overcome frictional resistance, such as in a section of the fault that has recently experienced an earthquake. The rupture may also stop if it encounters a 1. What type of fault tends to produce the most 2. During an earthquake the entire length of a fault 3. Defend or rebut this statement: Faults that do nd destructive earthquakes? motio slips in a single event that lasts less than 1 second. True or false? exper autom offset along the fault surface.Explanation / Answer
(i) Asiesmic fault creep is the term used to describe the phenomenon observed in Hollister along the Caraveras Fault of the San Andreas Fault system, where imperceptibly slow continuous slip occuring without any siesmic activity instead of the abrupt slip along faults, as recorded during earthquakes.
(ii) Earthquakes occur when two blocks across a fault suddenly moves in opposite direction due to the release of elastic stress or energy buildup along that fault. The probability of generating major earthquakes are less for such faults in which asiesmic creep develops. The faults of this type generally release some energy during this fault creep. Example of a fault showing minor fault creep with magnitude 6 earthquake is also known from Parkfield (in 2004) along San Andreas Fault. But occurences of huge earthquakes on such faults with fault creep is small.
(iii) The fault shown in the picture is Right- lateral or Dextral fault because the block on the opposite side of the fault moves to the right hand side of the observer relative to the block from which the observation is made by the observer.
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