Tsunami Warning System
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Scientists say the death toll in Asia caused by a massive tsunami might have been reduced if India and Sri Lanka had been part of an international system designed to warn coastal communities about potentially deadly waves.
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The extraordinary loss of life from Sunday's earthquake and tsunami waves is prompting Asian governments to consider developing a more comprehensive and effective warning system.
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Indonesia issued a tsunami warning on Tuesday after a strong earthquake struck off the Moluccas islands in the country's east, but there were no immediate reports of damage or casualties.
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Hawaii is among the most tsunami-ready places in the world. When an alert is issued, beachside sirens go off and urgent messages are flashed on television and broadcast on radio. Evacuation maps on telephone book covers point people to higher ground. But most of the time, no damaging tsunami hits the shore.
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The state government Tamil Nadu have issued a tsunami alert and warned people to leave coastal areas, report newswires. All flights going to Car Nicobar have been stopped after fresh alert.
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To help create warning systems to detect catastrophic events such as the tsunamis in south Asia, scientific research needs adequate support.
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NEW DELHI: Confusion prevailed over todayâs fresh tsunami warning by the home ministry with the science and technology ministry distancing itself from it, saying there was no official alert.
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(InfoWorld) - Governments seeking inexpensive technology to warn of tsunamis could be interested in a free software application that monitors vibrations in the hard disks of computers in an attempt to detect the underseaÂ earthquakes that cause tsunamis. The Tsunami Harddisk Detector is the brainchild of Michael Stadler, who demonstrated the prototype system earlier this week at the Ars Electronica exhibition in Linz, Austria. As part of their operation, hard disks measure vibrations in order to keep the read-write head of the disk on track. These measurements can be read from some hard disks. The Tsunami Harddisk Detector captures this vibration data and shares it with computers in other locations connected via a peer-to-peer network to determine whether an earth tremor is occurring. In the p-to-p network, several participating computers act as supernodes, which analyze the data received from the other "sensing" nodes. The supernodes are able to ignore vibrations generated by a computer being kicked or shaken, by recording how many computers report the same vibrations simultaneously. If an earthquake that could lead to a tsunami is detected, the supernodes inform the other nodes. Computers running the client software and connected to the p-to-p network can then warn of such events. The software is able to provide such warnings because the seismic waves produced by earthquakes travel at about 5,000 kilometers per hour, while tsunamis move much slower at 500 to 1,000 kilometers per hour, Stadler explains on hisÂ Web site. The speed difference leaves time to evaluate tremors and, if necessary, warn of a tsunami. On his Web site, however, Stadler points out that his system is still in the experimental stage with some inherent problems and can't be fully relied on to provide a "serious prediction" of a tsunami risk in its present configuration.
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The UN is to oversee building a tsunami warning system for the Indian Ocean, which could be ready in 12-18 months.
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Senators from states most vulnerable to tsunami activity introduced legislation Monday to upgrade and modernize the nation's tsunami warning system.
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India's Tamil Nadu state, which bore the brunt of the Indian Ocean tsunami, issues a new tsunami alert.
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According to a NASA Web site devoted to tsunamis, three out of four tsunami warnings issued since 1948 have been false.
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NEW DELHI: The centre on Wednesday warned coastal area states and islands against another tsunami in the Indian ocean and asked them to keep continuous vigil.
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The Indonesian meteorology agency issued a tsunami warning on Wednesday after an undersea quake at 6.6 strength on the Richter scale hit offshore East Timor.
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KOBE, Japan  - As the Asian tsunami focuses world  attention on natural disasters, experts on Wednesday called for  a global early warning system for all such catastrophes as soon  as possible.
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A tsunami early warning system for the Indian Ocean could be up and running by next year, a UN agency says.
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The Indian government on Thursday issued tsunami alerts for all areas hit by the weekend's killer waves, prompting panicking people to flee the coastlines.