A tsunami is the result of abrupt tectonic processes in oceanic areas. When an interaction occurs between two tectonic plates, causing a high intensity earthquake in a marine relief, the result is the formation of a large wave, the tsunames. This is the main cause of this kind of natural disaster. The others are rare, and consist of falling asteroids in the water and eruptions of marine volcanoes. There are software capable of identifying tsunami formation. This is a work of geologists. For example, Japan's tsunami was forecast in 2011, but there were still many deaths.
The equation for potassium in water is: K(s) + H20(l) --> H2(g) + K20(aq) since a element and a compound are reacting, this is a single replacement reaction - which is a)
