First scare ... On December 26, 2004, as a result of an earthquake with a magnitude above 9, a Sumatra in the Indian Ocean was formed by a tsunami, which led to the deaths of more than 230 thousand people with victims mainly in Indonesia, Sri Lanka and other coastal regions of the Indian Ocean. In the history of modern civilization, this was the most catastrophic natural event, with the largest number of victims. In some regions, the wave height reached 30 m.