ABSTRACT
Natural disasters have become a part of the worldwide spectacle of a globalize media. The Glacier Lake Outburst Floods (GLOF) induced disaster has also become a part of it, for its impact and risk on the people and economy of the mountain cannot be in no way underestimated. The GLOF events in the Himalayas have been occurring since long as evidenced by many landform features downstream. For example the GLOF event of the Barun Khola in Nepal was not known, but the accumulation of debris along the river valley is an indication GLOF event. Similarly, the debris accumulation in Pokhara Valley gives clues to the GLOF event some 450 years ago in the Seti due to collapse of moraine of a glacier lake in Machhapuchhare range in the Himalayas. In Bhutan, several evidences also show that GLOF event have been the common phenomenon, although the past events are not recorded in the modern chronicle or many events are unknown to people. A Swiss, Geologist Augusto Gansser, during his expedition to Bhutan Himalayas in the 1960s and 1970s had an opinion about the 1957 Punakha flood. He felt that it was due to an outburst from Taraina Tso in Western Lunana (Gansser, 1970 quoted in Mool et al., 2001).
