Vulnerable to tsunamis beyond this point!!!!!!!

1. Vulnerable to tsunamis beyond this point!!!!!!! By: Jane Baur

2. Where do tsunamis usually happen? Tsunamis usually happen along the Indian Ocean and Pacific Ocean. Tsunamis can happen on other oceans though. Tsunamis can also happen anywhere where there is an earth quake near an ocean. On my next slide I will show you were tsunamis usually happen.

4. How often do tsunamis happen a year? Look at the graph below. It will tell you how many tsunamis usually happen a year.

5. What features on Earth are involved with tsunamis? I know you REALLY want to know what is involved with tsunamis! Here they are! Earths plates are involved with tsunamis because when they move which it causes the top of the water to become a big wave. Also the ocean water is involved with a tsunami because that is what makes up a tsunami. The coastlines are part of a tsunamis because they cause the tsunami to crash into them. Earth quakes cause tsunamis. Volcanos cause tsunamis. Meteor right impacts. In the next slide it will show a picture of earth’s plates rubbing together.

7. What usually happens when tsunamis hit? What usually happens when a tsunamis hits is it causes great destruction. It sweeps away towns, houses, and buildings. Tsunamis cause flooding on coast lines. Also tsunamis make land recede. Your house could be 1000 feet from the beach and end up 2 feet away from the ocean (If your house is not totally destroyed.) Tsunamis also cause so many deaths. In the 2004 tsunami on the Indian Ocean it caused 230,000 deaths. Tsunamis can happen when ever. There can be a lot of tsunamis one year and only one little one the next. There can be any number of tsunamis a year.

8. What are the most extreme conditions with a tsunami? Tsunamis can be different levels of extreme. To make a tsunami really extreme though it needs to be generated by a huge earth quake, or volcano eruption, or meteor right impact. The bigger the things are to start a tsunami the bigger and deadlier tsunami. AN extreme tsunami would reach up to at least 100 feet! It would kill millions and millions of people. It would also be bigger than the average tsunami.

9. What scale can you measure a tsunami with? You measure a tsunami by the moment magnitude scale. This scale works by calculating the magnitude of a tsunami. It’s kind of like how they measure a earth quake . They measure the magnitude of a tsunami to. My next slide will be a picture of the moment magnitude scale.

11. What happens after a tsunami hits? What happens after a tsunami hits is It causes flooding The tsunami causes many deaths It can cause disease There are power outages There is food shortage People get killed by debris they don’t see. People touch debris that is dangerous with out knowing with kills them. Many people get overwhelmed by the water and drown.

12. Key terms for tsunamis. Tsunamis- A huge wave generated by earth quake, volcanoes, and meteor right impacts. Also causes great destruction. Flood- over flow of water on dry land. Earth quake- A sudden movement of rocks under earth, or a shift of Earth’s crust. Richter scale- A scale that measures earth quakes and how big they were. Moment magnitude scale- A way to measure tsunamis and there magnitudes.

13. Thank you to the following sitesWikipediaGale ScienceEbscoImages were found…Google

14. Interesting facts about tsunamis! The 2004 Indian Ocean tsunami was recorded one of the worst natural disasters. Tsunamis are confused sometimes with harbor waves. Tsunami is Japanese for harbor wave. Tsunamis are one of the deadliest natural disasters.

15. Thank you for watching this power point!  Thanks again! 