GG231 Chapter Notes - Chapter 3: Indian Ocean, Warning System, Subduction
Document Summary
Catastrophe in the indian ocean: december 2004 countries around indian ocean. 230 000 people killed, hundreds of thousands injured, millions displaced. Source was from magnitude 9. 1 quake off sumatra. Movement of faults produced massive waves that reached indonesian islands within minutes and other countries later. People were caught by surprise due to lack of tsunami warning. Tsunami took more than 7 hours to cross entire indian ocean to east african coast. More than of deaths were in indonesia, which suffered from the earthquake and the tsunami. Sri lanka, india, thailand also suffered a great deal. Much less common in indian ocean compared to pacific ocean. Effective warning systems needed in all countries near ocean basins. Also need emergency protocols that are effective and efficient. Earthquake and tsunami education necessary for people living along coast lines. Introduction to tsunami: tsunami produced by sudden displacement of water due to other trigger events, major tsunami. 1755 lisbon 20 000 people.
