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Edit Comment Close Premium member Presentation Transcript Slide 1: Tsunami The killer sea wave Tsunami Designed at DPS-DIGBOI Slide 2: Contents Introduction FACTS About Tsunamis BEFORE Tsunami PREVENTION from Tsunami PRECAUTION during Tsunami AFTER Tsunami DETECTING Tsunami Slide 3: Introduction ‘Tsunami’, coined from the Japanese term Tsu meaning ‘harbour’ and nami meaning ‘waves’. Tsunamis are waves generated by earthquakes, volcanic eruptions, or underwater landslides and can reach 15m or more in height devastating coastal communities. Slide 4: Introduction Epicenter for Tsunami’s Quake Slide 5: On 26th of December 2004, a Tsunami hit 11 Eastern Countries of Asia and killed more than 1,50,000 lives. In 1883, the violent explosion of the famous volcano, Krakatoa in Indonesia produced tsunamis measuring 40m which crashed upon Java and Sumatra. Introduction Slide 6: FACTS About Tsunamis Tsunamis can be as great at 10m or more (30m in extreme) and they can move inland several hundred metres. All low lying coastal areas can be struck by this. Tsunamis can move even 50 km/hr on coastal plain. Tsunamis can occur at any time of day and night. Slide 7: FACTS About Tsunamis A tsunami consists of series of waves. The danger from subsequent waves last for hours after the arrival of first wave. Slide 8: FACTS About Tsunamis Sometimes a tsunami causes the water near the shore to recede, exposing the ocean floor. The force of some tsunamis is enormous. It can destroy homes and other buildings and kill or injure people. Tsunamis can travel up rivers and streams that lead to the ocean. Slide 9: Find out if your home, school, workplace, or other frequently visited locations are in tsunami hazard prone areas. Know the height of your street above sea level and the distance of your street from the coast. Plan evacuation routes and practice. Have disaster supplies on hand. Discuss tsunamis with your family. Develop an emergency communication plan. BEFORE Tsunami Slide 10: Avoid building or living in buildings within several hundred feet of the coastline. Make a list of items to bring inside in the event of a tsunami. Take precautions to prevent flooding. Use local radio or television station for updated emergency information. Follow instructions issued by local authorities. PREVENTION from Tsunami Slide 11: Elevate coastal homes which will reduce damage to the property. Have an engineer check your home and advise about ways to make it more resistant. PREVENTION from Tsunami Slide 12: Alert your family and evacuate the house to a safe elevated area and move in an orderly, calm and safe manner to the evacuation site. Take your Disaster Supplies Kit. During evacuation, take animals with you. If you are at the beach and feel shaking of earth, leave and move to higher place immediately. PRECAUTION during Tsunami Slide 13: The upper floors of multi-storey buildings can be a safe place. Stay away from the low-lying coastal areas when there is tsunami warning. Update yourself on emergency information. If you are on a boat or ship and have time to move than its better to move to deep water. Keep in touch with the authorities of the ports. PRECAUTION during Tsunami Slide 14: Continue using a radio or television for update information. Check yourself for injuries and get first aid. Help people who require assistants. Avoid disaster areas as your presence might hamper rescue work. Use telephone only for emergency calls. Stay out of a building if water remains around it. AFTER Tsunami Slide 15: Use battery-powered lanterns or flashlights to examine the building instead of candles to make sure that the building is not in danger of collapsing. Look for fire hazards. Check for gas leaks. Look for electrical system damage. Check for damage to sewage and water lines. Open the windows and doors to help dry the building. AFTER Tsunami Slide 16: DETECTING Tsunami By using Satellite Technology, it is possible to provide nearly immediate warning of potentially tsuna-migenic earthquakes. Warning time depends upon the distance of the epicenter from the coast line. Coastal tidal gauges can stop tsunamis close to the shore but not in deep oceans. Tsunami detectors, linked to land by submarine cables, are deployed 50 odd kms. out at sea. ‘Tsunameters’ transmit warnings of buoys on the sea surface, which relay it to satellites. Thank You You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.