The glacier collapse was large enough to register as a 5.2-magnitude “seismic event”, initially mistaken for an earthquake.
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A huge piece of ice that fell thousands of metres from a glacier into a river below may have unleashed the disaster in Nepal and Tibet that killed at least 180 people.
Here is what experts believe happened so far:
A glacier collapse in Nepal’s mountains near Tibet appears to have triggered the disaster.
“A large chunk of glacier fell from about 5,200 metres… into a valley,” said Simon Cox, principal scientist at New Zealand’s GNS Science.
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