AIM: How do Tsunamis form? DN: What is a tsunami? What type of damage does a tsunami cause? HW: Article

What is a tsunami? Tsunamis are huge waves of water that are usually caused by earthquakes or volcanic eruptions under water. When tsunamis hit shallow water (often near the coast) they slow down but increase in height.

Tsunami Facts….. The Japanese word tsunami literally means ‘harbor wave’. Tsunamis are sometimes referred to as tidal waves but this term has fallen out of favor because tsunamis are not related to tides.

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How can you tell is a tsunami is approaching? the shore, water may recede from the coast, if it is shallow enough the water may be pulled back hundred’s of meters. If you are in the area, observing this is a good indication that a tsunami is on the way. What should you do if this happens? RUN TO HIGHER GROUND ASAP!!!! Regions in tsunami danger zones often have warning systems in place to give people as much time to evacuate as possible.

An earthquake in the Indian Ocean off Indonesia in December 2004 caused a tsunami that killed between 216, ,000 people. In March 2011, the Tohoku earthquake off the eastern coast of Japan caused a tsunami that killed over 15,000 people The tsunami waves created by the Tohoku earthquake reached heights of over 40 meters (131 feet) in some areas, wiping out coastal towns and causing a number of nuclear accidents. Recent Tsunamis

Which states are at greatest risk for a tsunami in the United States? Why? Hawaii, Alaska, Washington, Oregon, and California.

Could a Tsunami happen here? Scientists hypothesize that the next mega- tsunami may occur in the Canary Islands. The mega tsunami could cross the Atlantic Ocean and devastate U.S. coastal cities like New York, Boston, and Miami with waves reaching more than 100 feet high

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