The nature of the disastrous floods that hit Nepal and Tibet on Wednesday morning, killing thousands and going missing, is gradually becoming known.
People running moments before a massive mass of mud tore up neighborhoods and destroyed roads, buildings, and other structures were captured during the catastrophe.
Scientists initially assumed there was an earthquake as the cause, but later discovered that the recorded disasters were really related to a "glacial decline. "
Basanta Raj Adhikari, the director of the Tribhuvan University in Nepal's Center for Disaster Studies, claimed that there is a" second and third storm" of storms.
He continued to analyze the situation with colleagues in China, adding that" we don't yet know".
No significant rain is forecast, but despite Adhikari's warning," We are call, we may not know that this would happen on a particular day. "
Adhikari added that" culture change is actually happening" and that scientists have been monitoring the dangers posed by the Himalayan peaks.
At first, Nepal's authorities and geographical organizations claimed that an earthquake was the cause of the flood.
Times before the disaster started, USGS seismic surveyors from the same area recorded an earthquake of magnitude 4. 4 in the same area.
The US assistance then corrected the claim that the flood was a result of a significant slide of ice and debris, no the earthquake itself.
The glacier collapse, according to the USGS, occurred close to the Nepal-Tibet border at 08:37 local time ( 22:00 GMT ), which translated to a magnitude of 5. 2.
In other words, a big portion of a mountain deposited itself in a mountainous region, dragging snow, rocks, and sediments through.
Additionally, studies made from satellite pictures support this hypothesis. tls: //flo. val. sh/visualisation/30082210/embed? auto=1
Simon Cook, a professor of energy, environment and safety at the University of Dundee, Scotland, and a glaciologist, told the BBC that a colleague from his team identified on Wednesday that the bottom of a glacier near the affected area had disappeared.
According to Cook, the photo indicated that" some kind of landslide of snow or glacier collapse" had taken place.
The detected disaster would have been caused by the mountain collapsing itself when it reached the valley's base, according to a group partners.
This demonstrates the enormity of the event, Cook claims.
The Lhende Khola River would have temporarily obstructed the flow of the water due to the mass of ice, rocks, and dirt that had migrated there.
A great wave of waters, ice, rocks, and mud swept down the river as the blockade came to an end.
Experts consulted by the BBC's Nepalese Service point out that the geography of the region, characterized by narrow valleys and very sharp terrain, favors the rapid spread of these waves of water and debris.
Professionals must also confirm the details of this series of events, though.
It is still too early to determine the significance of climate shift.
Cook said that his group was shocked by the enormity of the tragedy and that there have been numerous similar incidents in recent years in places like the Himalayas, Switzerland, and the Dolomites, in Italy.
However, he says," You think climate change might have an effect when you look at the design of these activities. "
Global warming, in Cook's opinion, may be causing ice, which is made up of rocks that have been frozen for a long time, to defrost and destroy.
Some mountain cliffs are kept up by ice. These great mountain conditions can become more unstable when they lose stability, the scholar claims.
He adds that this could lead to more landslides, dust flows, mountain melting, lakes breaking, and glacier collapses.
But, it is still difficult to say for certain how much this particular crisis was impacted by climate change.
According to the United Nations, Nepal has already lost a third of its ice volume over the past three years, and its glaciers have melted at a rate of 65 % faster than usual between 2011 and 2020. tls: //flo. val. sh/visualisation/30072235/embed? auto=1https: //flo. val. sh/visualisation/30072246/embed? auto=1
According to experts, the landscape of the border area between Nepal and Tibet, a country that is under Chinese control, makes it particularly vulnerable to natural disasters.
Some of the highest mountains in the world are found here, along with substantial ice, winter fields, and rough and unpredictable cliffs.
Before settling into Nepal's densely populated areas, the rivers that flow from the Tibetan Plateau fast descend through deep valleys.
Experts claim that this creates the conditions for the spread of network catastrophe.
They contend that heavy rains destabilize slopes and engage complexly with glaciers, winter fields, and river systems, increasing the risk of string disasters.
In this way, landslides can block rivers, glaciers, snow masses, and snow fields, and prey can suddenly collapse, releasing dangerous river-down grows.
Communities in northeastern Nepal, including those that welcome several pilgrims and tourists, have experienced an impressive increase in the avalanche of water, mud, and debris.
As people tried to flee, a large clay wall dragged buildings, roads, and vehicles in the images of the catastrophe.
The Lhende Khola River was the first to receive the influx of fluids and debris, before moving on to other closely related rivers, including the Bhote Koshi, Trishuli, and Narayani.
In a statement, the International Center for Integrated Mountain Development warned of additional storms that might result in the near future.
This is because the streams have dragged a lot of dust, which could lead to new blockages in narrower sections, which raises the risk of dam formation and fresh floods.
Government and scientists are attempting to determine the extent of these blockades and stop future disasters.
In an activity that is hampered by the physical and weather conditions of the area, save teams are also working to find the lost and take care of the injured.
Experts claim that while landslides, avalanches, and mountain collapses may be totally avoided, their effects can be attenuated.
In susceptible rivers and in the vicinity of glacial lakes, more and more early warning systems are being installed. These devices can track changes in weather and save valuable time when conducting evacuations.
Additionally, the experts contend that improved cross-border cooperation is necessary because many of these events originate in isolated Tibetan regions before affecting Nepal.
We would have seen it from here if it had started in Nepal. However, it is necessary to improve the structure of exchange of information between nations in situations like this, according to Basanta Raj Adhikari, director of the Tribhuvan University in Nepal.
He added that the current mechanisms for sharing data between nations do not appear to be sufficient to prevent disasters of this nature, which are quickly evolving.
Specialists argue that reducing coverage may be the best course of action over the long term. ssl: //flo. val. sh/visualisation/30071930/embed? auto=1
*With knowledge from BBC Nepal Service and BBC News
