Climate Change may cause intensification of extreme events and increase their frequency of occurrence. In most of literature, extreme climate related events are those that deviate heavily from the norm, i.e. hydrometeorological events such as heat and cold waves, extreme precipitation, exceptional storm surge, floods and droughts. Generally the use of the term 'extreme event' is not associated with rare or 'low probability' natural disasters even though their impact may be extremely destructive, such as tsunamis or earthquakes. The frequency and occurrence of those low probability extreme events is not related to climate change. Nevertheless, the level of destructive impacts they can provoke is. A low resilient environment may evidently suffer the most even from low probability extreme events.