In 2004 a tsunami in the Indian OceanThe tsunami by earthquake struck India in 2004. About 230,000 people died in this disaster.Early warning system was thought to reduce the damage.
Before 2004 and After 2004Before 2004, there were no sea-level monitoring instruments in the Indian Ocean. Five years on, a large networks to detectpotential tsunamis are located across the IndianOcean to pass warnings to the community. This networks warned seismographic centres, national warning centres or agencies, coastal and deep-ocean stations.
PTWC and JMAWhen an earthquake happen in India, data froma variety of sources is transmitted to the Pacific Tsunami Warning Centre (PTWC) based in Hawaii and the Japan Meteorological Agency (JMA) in Tokyo. The PTWC and JMA are now that you areresponsible for providing what is known as the Indian Ocean tsunami watches.
Tsunami watches By 2011, Regional Tsunami Watch Providers (RTWPs) in Indian Ocean countries are set to take over this function. Australia, India, Indonesia, Malaysia and the Asian DisasterPreparedness Centre (ADPC) in Bangkok are on track to become regional watch providers.
Multi-hazard early warning system ADPC has been coordinating its own effortssince 2005 to have a multi-hazard early warningsystem, known as the Regional Integrated Multi- Hazard Early Warning System (RIMES). RIMES will be operable early next year.
Two centres There are two centres in Hawaii and Japan. They receive earthquake information and datafrom tidal gauges and Deep-ocean Assessment and Reporting of Tsunamis (DART) sensors or buoys. These two centres is to locate and determine the size of earthquakes.
Warning to the population Warnings to the population are delivered in a variety of ways. Over the airwaves - radio, television, SMS, email - and manually, usingbells, megaphones or loud-speakers attached to mosques. Drills will kick in and local agencies will coordinate an evacuation.