Geography 2152F/G Lecture 3: Tsunamis
10 Oct 2018
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Tsunamis: tsunami is japanese for harbour wave", they are produced by the sudden displacement of water, events capable of triggering tsunamis, earthquakes that cause uplift of the seafloor, landslides, volcano flank collapse, underwater volcanic eruptions, meteorites. Regions at risk: coasts located near subduction zones or across oceans from subduction zones are most at risk, areas at greatest risk are the pacific ocean and the mediterranean sea. Effects of tsunamis: primary effects, flooding and erosion destroy beaches, coastal vegetation, and infrastructure, after the tsunami retreats to the ocean, scattered debris is left behind, most tsunami deaths are from drowning. Indian ocean tsunami of 2004: this catastrophic event occurred on december 26th, the source was a m 9. 1 earthquake of the west coast of sumatra (an island in. It was the 3rd strongest earthquake in world history: the earthquake occurred in a subduction zone between the burma and indian-
