Nepal’s earthquake caused Mount Everest to shrink: scientists

The world's tallest mountain may have lost a bit of height, but its in no danger of giving up its title


Web Desk May 02, 2015
A general view from Everest Base Camp towards the summit of Mount Everest in Nepal. PHOTO: AFP

The devastating 7.8-magnitude earthquake in Nepal which has left over 7,000 people dead, over 14,000 injured and a country in ruins, has managed a feat that has caused scientists to sit up and take note.

Home to the world's tallest mountain, Mount Everest, the earthquake caused devastation there with avalanches destroying the base camp and leaving at least 20 mountaineers dead. It also caused the mountain to shrink by an inch, revealed UNAVCO, a nonprofit geoscience research consortium.

The analysis was made on the basis of the data from the European Space Agency Sentinel-1A satellite, which crossed the affected area for the first time on April 29.

As soon as the fault between the India and Eurasia tectonic plates slipped and this caused the earthquake, strain was released that let the Earth’s crust to relax. This led to a slight reduction in the height of Everest, which stands 8,848 m (29,029 ft) tall.

Read: Nepal quake toll tops 7000

However, the Everest is currently in no danger of losing its title as the world's tallest mountain. Second placed K-2 (8,611 m high) should not get its hopes up at upstaging the Himalayan giant.

Roger Bilham, a fellow at the Cooperative Institute for Research in Environmental Sciences and a professor in geological sciences at the University of Colorado Boulder said that the Everest had shrunk by only one or two millimeters.

He told the The Huffington Post that the effect can be compared to suddenly releasing an eraser that's been squeezed. "Squeeze an eraser and it rises," he remarked. "Let go and it shrinks back to its original shape."

Furthermore, the Annapurna Range, another mountain located in central Nepal closer to where the earthquake occurred, grew not less than 20 centimeters, or roughly eight inches.

Read: Disease fears hit Nepal's quake-hit homeless

To top it all, an area around Nepal's capital city of Kathmandu was actually lifted up vertically by around three feet, as the analyses put forth by the German Aerospace Center. The area was estimated to be more than 55 miles long and 18 miles wide.

What helped the scientists more was the data gleaned by the Sentinel-1A satellite, making it easy to study the mechanics of the quake itself.

"We want to know which parts of the fault slipped," Tim Wright, a geophysicist at the University of Leeds, told the BBC. "

He added, “And that's important because it tells us those parts that did not, and which are still primed and ready to go in a future earthquake."

The article originally appeared on The Huffington Post

COMMENTS (1)

M.M.HAZARIKA | 8 years ago | Reply It is something unusual. We never expected it. This means the Quake has much more implications than what we had thought earlier. Therefore, there is a chance of relapse of the Quake somewhere around us. Since none can predict a Quake accurately; we must keep ourselves prepared for any eventualities if anything going wrong by any chance. We must understand that we are at the mercy of Mother Nature at every moment of our lives and hence it is useless to fight between each other reasonless; falsely based on one's territorial gain; even though it is non-existent in nature if we view the overall aim of our staying in the Planet Earth momentarily to complete our Journeys alone or Individually.
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