A tsunami warning system (TWS) is used to detect tsunamis in advance and issue warnings to prevent loss of life and damage. It is made up of two equally important components: a network of sensors to detect tsunamis and a communications infrastructure to issue timely alarms to permit evacuation of the coastal areas.
Earthquake triggers deadly tsunami. The world's most powerful earthquake in more than 40 years struck deep under the Indian Ocean on December 26, triggering massive tsunamis that obliterated cities, seaside communities and holiday resorts, killing tens of thousands of people in a dozen countries.
The 2004 Indian Ocean earthquake, and series of catastrophic tsunamis that followed in its wake, had a lesson to teach. The world community needs to put in place early detection systems, possibly sponsored by the United Nations, that would undoubtedly save lives.
Ciri-ciri gempa. Gempa ini awalnya tercatat berkekuatan M w 8,8. Pada bulan Februari 2005, para ilmuwan merevisi perkiraan kekuatannya menjadi 9,0. Meskipun Pacific Tsunami Warning Center menerima revisi tersebut, United States Geological Survey masih bertahan dengan angka 9,1.
Three months after the Indian Ocean earthquake-tsunami report Health consequences and WHO's response General overview. In the early hours of the morning of Sunday 26 December 2004 a massive earthquake measuring 9.0 on the Richter scale struck the west of northern Sumatra.
The Australian Tsunami Warning System is a national collaboration between the Australian Bureau of Meteorology (Bureau), Geoscience Australia (GA) and the Attorney-General's Department (AGD) which provides a comprehensive tsunami warning system delivering timely and effective tsunami warnings to the Australian population.
Tsunami warning systems. The hazards presented by tsunamis have brought many countries in the Pacific basin to establish tsunami warning systems. A warning may begin with an alert by a geological society that an earthquake large enough to disturb the ocean's surface (for instance, magnitude 7.0 or higher) has occurred.