spots E) oceanic divergent margins hotspots An is usually a manifestation of ene
ID: 155067 • Letter: S
Question
spots E) oceanic divergent margins hotspots An is usually a manifestation of energy released during crustal movement along a fault. How did that energy accumulate? A) as build-up of geothermal energy B) from mass movement plastic strain as elastic strain E) during ductile deformation 48. Which one of the following statements A) the focus is the faulted point surface directly above the epicenter B) the fault first cracks at the epicenter, and breaks through to the surface at the focus Gthe epicenter is at the ground surface directly above the focus (hypocenter) D) an earthquake starts at the focus (hypocenter) and the rupture extends down to the epicenter E) focus and epicenter are two terms for the same point 49 have the fastest wave A primary waves B) secondary waves C) vertical surface waves speeds surface waves D) refracted s waves E) reflected inner core it is liqui id. s waves cannot pass through the Earth's outer core because it is dominantly: A) solid B) liquid c) mantle D) plastic E) gaseous P waves travel faster threwah mowntle s-wort, ManH 51. Approximately how much more energy is released in a 6.5 magnitude earthquake than in one with magnitude 5.5? A) 10 times B 30 times c) 100 times D) 300 times E)9000 times 52. The Modified Mercalli Scale rates the: A) stress required for a fault to move, on a scale of 1 to 12 B) energy released by an earthquake, on a scale of 1 to 10 C) effects of an earthquake on people, on a logarithmic scale on a scale of l toxll D) total energy released during the main quake and all aftershocks, scale ofito xll EO effects (especially structural damage) due to an earthquake, on aExplanation / Answer
Answer 50 Liquid
S-waves passing from the mantle to the core are absorbed because shear waves cannot be transmitted through liquids. This is evidence that the outer core does not behave like a solid substance.
S-waves are not transmitted through the liquid outer core. This produces a 'shadow zone' on certain parts of the Earth's surface where S-waves are not recorded, and this is used as the main piece of evidence to deduce the size of the core. The core has a radius of 3470 km.
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