Geography 2152F/G Lecture Notes - Lecture 7: Megathrust Earthquake, Baffin Island, North American Plate
23 Dec 2018
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Document Summary
Reading #3 review questions: describe what occurs in the lead-up to a megathrust earthquake. The tectonic plates move towards one another continually but can get stuck and thus over long periods of time this creates a great build-up of tension. The rock and chunks of wood debris that interrupt the core"s muted brown tell of an earthquake"s story. Scientists didn"t even know there was a fault in the region until a much less damaging earthquake struck the year before, in 2010. Surface of the island is currently bulging up 2mm per year, informing models that that is where the juan de. Giving people a 10 to 90 second warning before the earthquake hits, which could save lives and prevent damage. The last earthquake occurred in 1700, 318 years ago. Based on the window forecasted by the scientists, the next strong earthquake could occur between 2020 and 2720. Energy from an earthquake is released in the form of seismic waves.
