logging in or signing up Tsunami - Magnitude of Terror rishabh.tatiraju Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 771 Category: Science & Tech.. License: Some Rights Reserved Like it (0) Dislike it (0) Added: September 28, 2010 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... By: williamrichmond (14 month(s) ago) Gud presentation.......... Saving..... Post Reply Close Saving..... Edit Comment Close By: kamaja (19 month(s) ago) hai... very good presentation.......... Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Slide 1: Made By Rishabh Tatiraju What is a Tsunami? : What is a Tsunami? A Tsunami is a series of water waves that is caused when a large volume of a body of water, such as an ocean, is rapidly displaced. The Japanese term is literally translated into "harbor wave”. Causes of a Tsunami : Causes of a Tsunami A tsunami can be generated when convergent or destructive plate boundaries abruptly move and vertically displace the overlying water. Earthquakes, volcanic eruptions and other underwater explosions (detonations of nuclear devices at sea), landslides, mass movements, and other disturbances above or below water all have the potential to generate a tsunami. Due to the immense volumes of water and energy involved, the effects of tsunamis can be devastating. Signs of an approaching tsunami : Signs of an approaching tsunami There is often no advance warning of an approaching tsunami. However, some warning signs include: Shoreline may recede dramatically, exposing areas that are normally always submerged. An odd sucking sound. Foaming of Sea Water Bubbles emerging from water. Whirlpools (In rare cases) Slide 6: Shoreline receding up to 50 metres Slide 7: NASA Image of the Tsunami taken by one of their satellites on Dec 26, 2004 Warnings and prevention : Warnings and prevention A tsunami cannot be prevented or precisely predicted—even if the right magnitude of an earthquake occurs in the right location. Geologists, oceanographers, and seismologists analyse each earthquake and based upon many factors may or may not issue a tsunami warning. One of the most important systems that is used and constantly monitored are bottom pressure sensors. These are anchored and attached to buoys. Sensors on the equipment constantly monitor the pressure of the overlying water column. Pressure Sensor Notable Events : Notable Events 1960 Valdivia Earthquake (Strongest Earthquake ever recorded with 9.5 on Richter scale) triggered waves as high as 10.7 metres (35 ft) were recorded 10,000 kilometres (6,000 miles) from the epicentre, and as far away as Japan and the Philippines. 1964 Hawaiian/Alaskan Earthquake triggered a 27-foot (8.2 m) tsunami which destroyed the village of Chenega, killing 23 of the 68 people who then lived there; survivors out-ran the wave, climbing to high ground. Tsunamis also caused damage in Hawaii and Japan. Slide 10: 2004 Indian Ocean Tsunami 2004 Indian Ocean Tsunami : 2004 Indian Ocean Tsunami The 2004 Indian Ocean earthquake was an undersea megathrust earthquake that occurred at 6:30 am (IST) on December 26, 2004, with an epicentre off the west coast of Sumatra, Indonesia. The earthquake was caused by subduction and triggered a series of devastating tsunami along the coasts of most landmasses bordering the Indian Ocean, killing nearly 230,000 people in eleven countries With a magnitude of between 9.1 and 9.3, it is the second largest earthquake ever recorded on a seismograph. This earthquake had the longest duration of faulting ever observed, between 8.3 and 10 minutes. It caused the entire planet to vibrate as much as 1 cm (0.4 inches) and triggered other earthquakes as far away as Alaska. Slide 12: People run as Tsunami hits Thailand on December 26, 2004 Slide 13: Water recedes as tsunami approaches Tsunami strikes with a great thrust Tilly Smith and her brave acts : Tilly Smith and her brave acts Tilly Smith is a British girl who, at age 10, was credited with saving nearly a hundred foreign tourists at a Beach in Thailand by raising the alarm minutes before the arrival of the tsunami caused by the 2004 Indian Ocean earthquake. She learned about tsunamis in a geography lesson two weeks before the tsunami from her teacher Andrew Kearney at Danes Hill Preparatory School in Oxshott, Surrey. She recognised the receding shoreline and frothing bubbles on the surface of the sea and alerted her parents, who warned others on the beach and the staff at the hotel on Phuket where they were staying. The beach was evacuated before the tsunami reached shore, and was one of the few beaches on the island with no reported casualties. Her family (Tilly Smith in blue top) The Aftermath : The Aftermath A recent analysis compiled by the United Nations lists a total of 229,866 people lost, including 186,983 dead and 42,883 missing. Beyond the heavy toll on human lives, the Indian Ocean earthquake has caused an enormous environmental impact that will affect the region for many years to come. It has been reported that severe damage has been inflicted on ecosystems such as mangroves, coral reefs, forests, coastal wetlands and vegetation In addition, the spread of solid and liquid waste and industrial chemicals, water pollution and the destruction of sewage collectors and treatment plants threaten the environment even further. Slide 16: The Tsunami which hit our land On the boxing day Has freed us from ourselves Has shown us the correct way. Together all of World Should get over this ordeal Every one working together Regardless of nationality colour and creed. The waves shattered the world Yet humanity it could not break. Compassion, love and kindness reached out to all, And gave hope in every way. Oh Tsunami you hit us Expecting us to fall. But we will rise stronger, Much better than before. -- A Poem by a Survivor Slide 17: Thank You You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Tsunami - Magnitude of Terror rishabh.tatiraju Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 771 Category: Science & Tech.. License: Some Rights Reserved Like it (0) Dislike it (0) Added: September 28, 2010 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... By: williamrichmond (14 month(s) ago) Gud presentation.......... Saving..... Post Reply Close Saving..... Edit Comment Close By: kamaja (19 month(s) ago) hai... very good presentation.......... Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Slide 1: Made By Rishabh Tatiraju What is a Tsunami? : What is a Tsunami? A Tsunami is a series of water waves that is caused when a large volume of a body of water, such as an ocean, is rapidly displaced. The Japanese term is literally translated into "harbor wave”. Causes of a Tsunami : Causes of a Tsunami A tsunami can be generated when convergent or destructive plate boundaries abruptly move and vertically displace the overlying water. Earthquakes, volcanic eruptions and other underwater explosions (detonations of nuclear devices at sea), landslides, mass movements, and other disturbances above or below water all have the potential to generate a tsunami. Due to the immense volumes of water and energy involved, the effects of tsunamis can be devastating. Signs of an approaching tsunami : Signs of an approaching tsunami There is often no advance warning of an approaching tsunami. However, some warning signs include: Shoreline may recede dramatically, exposing areas that are normally always submerged. An odd sucking sound. Foaming of Sea Water Bubbles emerging from water. Whirlpools (In rare cases) Slide 6: Shoreline receding up to 50 metres Slide 7: NASA Image of the Tsunami taken by one of their satellites on Dec 26, 2004 Warnings and prevention : Warnings and prevention A tsunami cannot be prevented or precisely predicted—even if the right magnitude of an earthquake occurs in the right location. Geologists, oceanographers, and seismologists analyse each earthquake and based upon many factors may or may not issue a tsunami warning. One of the most important systems that is used and constantly monitored are bottom pressure sensors. These are anchored and attached to buoys. Sensors on the equipment constantly monitor the pressure of the overlying water column. Pressure Sensor Notable Events : Notable Events 1960 Valdivia Earthquake (Strongest Earthquake ever recorded with 9.5 on Richter scale) triggered waves as high as 10.7 metres (35 ft) were recorded 10,000 kilometres (6,000 miles) from the epicentre, and as far away as Japan and the Philippines. 1964 Hawaiian/Alaskan Earthquake triggered a 27-foot (8.2 m) tsunami which destroyed the village of Chenega, killing 23 of the 68 people who then lived there; survivors out-ran the wave, climbing to high ground. Tsunamis also caused damage in Hawaii and Japan. Slide 10: 2004 Indian Ocean Tsunami 2004 Indian Ocean Tsunami : 2004 Indian Ocean Tsunami The 2004 Indian Ocean earthquake was an undersea megathrust earthquake that occurred at 6:30 am (IST) on December 26, 2004, with an epicentre off the west coast of Sumatra, Indonesia. The earthquake was caused by subduction and triggered a series of devastating tsunami along the coasts of most landmasses bordering the Indian Ocean, killing nearly 230,000 people in eleven countries With a magnitude of between 9.1 and 9.3, it is the second largest earthquake ever recorded on a seismograph. This earthquake had the longest duration of faulting ever observed, between 8.3 and 10 minutes. It caused the entire planet to vibrate as much as 1 cm (0.4 inches) and triggered other earthquakes as far away as Alaska. Slide 12: People run as Tsunami hits Thailand on December 26, 2004 Slide 13: Water recedes as tsunami approaches Tsunami strikes with a great thrust Tilly Smith and her brave acts : Tilly Smith and her brave acts Tilly Smith is a British girl who, at age 10, was credited with saving nearly a hundred foreign tourists at a Beach in Thailand by raising the alarm minutes before the arrival of the tsunami caused by the 2004 Indian Ocean earthquake. She learned about tsunamis in a geography lesson two weeks before the tsunami from her teacher Andrew Kearney at Danes Hill Preparatory School in Oxshott, Surrey. She recognised the receding shoreline and frothing bubbles on the surface of the sea and alerted her parents, who warned others on the beach and the staff at the hotel on Phuket where they were staying. The beach was evacuated before the tsunami reached shore, and was one of the few beaches on the island with no reported casualties. Her family (Tilly Smith in blue top) The Aftermath : The Aftermath A recent analysis compiled by the United Nations lists a total of 229,866 people lost, including 186,983 dead and 42,883 missing. Beyond the heavy toll on human lives, the Indian Ocean earthquake has caused an enormous environmental impact that will affect the region for many years to come. It has been reported that severe damage has been inflicted on ecosystems such as mangroves, coral reefs, forests, coastal wetlands and vegetation In addition, the spread of solid and liquid waste and industrial chemicals, water pollution and the destruction of sewage collectors and treatment plants threaten the environment even further. Slide 16: The Tsunami which hit our land On the boxing day Has freed us from ourselves Has shown us the correct way. Together all of World Should get over this ordeal Every one working together Regardless of nationality colour and creed. The waves shattered the world Yet humanity it could not break. Compassion, love and kindness reached out to all, And gave hope in every way. Oh Tsunami you hit us Expecting us to fall. But we will rise stronger, Much better than before. -- A Poem by a Survivor Slide 17: Thank You