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Killer waves The satellite Satellite
beams the data to The information is
A tsunami is a series of an early warning sent to a satellite
waves with great volumes station
of water and energy. Transmittor buoy
About eighty per cent
of the tsunamis occur The early warning Early-warning station
in the Pacific Ocean, station interprets
and a tsunami warning the data and sends
system based in Honolulu, out warnings
Hawaii, detects them and
warns people before the A tsunami detector The detector sends Anchor
waves hit shores. Some senses movement the information to
of the deadliest tsunamis on the ocean floor a buoy
are results of powerful
earthquakes. Tsunami detector

Indian Ocean tsunami, 2004 TSUNAMI WARNING SYSTEM

On 26 December, 2004, an In the middle of the sea,
earthquake of magnitude all that can be seen of a
9.3 on the Richter scale was tsunami is a hump on the
caused by the sliding of the surface
India plate under the Burma
plate. The epicentre of the
quake was under the Indian
Ocean, near the western
coast of the Indonesian
island of Sumatra. The
Indian Ocean earthquake
lasted eight minutes, while
most earthquakes last a few
seconds only.

Undersea quakes
displace large
quantities of water

ORIGIN OF A TSUNAMI

The Indian Ocean
tsunami of 2004
killed more than
225,000 people in
eleven countries.

TICKER A warning system called the Indian Ocean Tsunami Warning System is now in place to reduce
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