What happened and what can we learn from it?

2. Christmas Day 2004 Ramtes the coasts around the Indian Ocean of the largest natural disaster of the past for several centuries. A powerful earthquake that measured 9.3 a tidal wave, a Tsunami that devastated the coasts of the Indian Ocean and led to 2 to 300,000 casualties.

There are approximately 900,000 to 1 million earthquakes a year, but only few provoke a Tsunami. In order to induce a Tsunami, there must be a sudden change in the seabed relief in the event of an earthquake or a violent underwater vul outbreak.

This happened in the case of the Sumatra earthquake, where, in a matter of minutes as a slice, the seabed suddenly rose approx. 10 m. Over a distance of 1200 km (corresponding to the distance from here and to the Pyrenees). This change of seabed pushed to the water masses (in about 2000 m. depth) and sent shock waves out throughout the Indian Ocean.
The shocking natural disaster caused subsequent speculation on other areas, for example In the Atlantic could be affected by similar catastrophes and a discussion on the establishment of early warning systems similar to those already around the Pacific Ocean led to numerous risk reports on this subject.

In the lecture is illuminated what happened in the Indian Ocean 2. Christmas Day and what risks are considered to be for future tsunamis around the world, as well as what early warning systems might be realistic.