What is a Tsunami?
A tsunami, also known as a seismic sea wave, is a series of water waves
caused by the displacement of a large volume of a body of water, generally
an ocean or a large lake. Earthquakes, volcanic eruptions and other under
water explosions (including detonations of underwater nuclear devices),
landslides, glacier calvings, meteorite impacts and other disturbances
above or below water all have the potential to generate a tsunami.
tsunami waves do not resemble normal sea waves, because their wavelength is far longer.
rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide, and for this reason
they are often referred to as tidal waves. tsunamis generally consist of a series of waves with periods ranging from minutes to hours, arriving in a so-called „wave train“. Wave heights of tens of metres can be generated by large events. Although the impact of tsunamis is limited to coastal areas, their destructive power can be enormous and they can affect entire ocean basins.