ATS1310 Study Guide - Midterm Guide: Types Of Volcanic Eruptions, Soil Contamination, Volcanic Bomb
9 Aug 2018
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Slower as approaches shore (shallow) and then wave height increases. Pyroclastic flows (clouds of hot gas & ash) Earthquake: caused when the earth"s crust is flexed and eventually fractured which releases built-up energy through violent shaking of ground. Tsunami: set of ocean waves caused by a large, abrupt disturbance of the sea surface. Volcano: formed from molten material (magma) within earth"s crust. Secondary hazard: generated by primary geo-physical force (e. g. tsunami triggered by earthquake) Collect debris & can flow inland for kms with significant force. Effusive fluid lava streams, reduced hazard (predictable in its path and have warning before lava stream arrives) To highly explosive dominated by clouds of hot ash, cinders, and volcanic bombs, travels too fast to escape highly dangerous. Patterns/distributions of earthquake & volcanic activity plate boundaries/tectonics. Crust of earth composed of several tectonic plates (movement occurs at boundaries between plates & on the surface) Lahars (ash & rain, may carry large boulders, trees )
