
The nepal flood is a result of the catastrophic event occur in the Mountains.
In Nepal-Tibet border, a section of the Langtang Lirung is separated from the mountains and flow downside the mountains. The part of mountains glacier was so huge that when it reached to the bottom of mountain then it results in the 5.2 magnitude of the earthquake occur there. It shakes the whole area to high level earthquake.
Thousands of the section fall from above, then the ice was present there. Then, the ice while flowing down converted into the liquid water. This water is mixed with rocks, boulders, glaciar sediments and mud. It accumulate the speed of 193 km/hour.
So, this whatever called as mud water reached to the bottom and start flowing downards towards the nepal. In meantime it acheive a extreme speed and massive amount of water is formed there. There are two rivers near the nepal border, those got filled within 30 minutes not even time to prepare for it. The extra water sweeped out of it and enter into the residential area of the nepal causing disaster.