Topic 5 – Charleston Earthquake – Flashcards
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How widely was the earthquake felt?
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over most of the region east of the Mississippi river
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Charleston was founded when?
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Long before the revolutionary war
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Charleston received very little federal assistance in the aftermath
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True
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Modern seismic studies have identified a subsurface South Carolina seismic zone named:
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Middleton Place-Summerville Seismic Zone
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Earthquake magnitude intensities were measured for both the New Madrid and Charleston quakes using seismographs:
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False
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Most of the Charleston quake recovery funds were raised from
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private sources
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A precursor quake was felt in this nearby town prior to any tremors in Charleston
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Summerville
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Approximately 20 years after the Charleston quake, another earthquake in this city caused it to look to Charleston for how to respond
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San francisco
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South Carolina disaster preparedness tends to focus on:
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hurricanes
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Mr. Sloan found through his study of earthquake and rail disturbances how many epicentral regions of earthquakes in the Charleston region
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2
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Another earthquake the size of the Charleston earthquake and in the same area would likely cause a greater loss of life and property than any hurricane could
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True
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Can the pattern of brick laying and the type of mortar make any difference in the strength of walls
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yes
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These vital infrastructure resources were built in one of the epicenter regions of the Charleston earthquakes
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Charleston International Airport and Charleston Air Force Base
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Dutton found the greatest concentration of sand blows in the epicentral regions of the Charleston earthquakes
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True
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Sedimentary rocks younger than the formation of Atlantic ocean are how thick near Charleston
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Greater than 15,000 feet
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The Charleston earthquake was the first great natural disaster to face a metropolitan citizenry in the US
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True
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Many problems with the earthquake recovery of Charleston were because of the inexperience of its citizens with disaster
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False
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Charleston is on the ___, a wide swath of almost flat lying thick sedimentary rocks that dip or slope gently toward the shore and beyond to the continental shelf margins
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Atlantic Coastal Plain
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The shortening of rails can be a sign of crustal shortening or compressions
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True
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The earthquake took place in what year?
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1886
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What types of disturbances were noted in the Charleston region as a consequence of the earthquake
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All of these
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Brick and masonry structures of Charleston experiences less damage than wooden structures
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False
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"Made land" is more susceptible to liquefaction than most dry natural land
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True
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A goal of Dutton and his group's investigations was to determine the distribution of relative intensities by way of isoseismal which are
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Lines of equal relative intensity
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The long SW-NE Woodstock fault was offset by a separate fault, Located in 2004, running 30 degrees NW, it runs down the Sawmill Branch of Ashley river. This is named:
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the Sawmill Branch Fault
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Modern seismic studies have found the faults likely responsible for the quakes are located:
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About 12 miles beneath the surface
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Paleoseismic studies found that the average time between major quakes in the Charleston area is:
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500 years
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Older brick buildings in Charleston used mortar composed of ground:
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oyster shells
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In the aftermath, almost the entire city was destroyed by fire
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False