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More than a third of the Kumaun region in the Himalayas is susceptible to moderate damage in the event of earthquakes of magnitude 7 to 8.6, according to a new study by scientists at the Wadia Institute of Himalayan Geology.
The Kumaun Himalayas are located in the central western part of the mountain range and are mostly located in Uttarakhand.
Several studies indicate that this region is prone to earthquakes of magnitude 8 or higher. In this context, the mapping of common landslide—caused by earthquakes—has become important.
Common seismic landslides are one of the main hazardous phenomena in the hills and seismically active mountainous region. Often, the damage caused by landslides caused by earthquakes is much greater than the damage caused directly by ground shaking.
A team of scientists, including Sandeep Kumar, Vikram Gupta, Parveen Kumar and YP Sundriyal, from the Wadia Institute of Himalayan Geology in Dehardun, has conducted a probabilistic assessment of combined seismic landslides in the Gorriganga Valley in the Common Himalaya.
The valley is located at the highest seismic activity zone in the seismic zoning map of India. The scientists estimated the permanent Newmark displacement that provides the expected gradient distribution in the region.
”It was found that more than a third of the area was subject to combined seismic landslides and that earthquakes of magnitude 7, 8 and 8.6 may moderately damage 1,459 square kilometers, 1,256 square kilometers and 1,134 square kilometers in the study area. Straight ”, the search found.
The study was recently published in the “Bulletin of Engineering Geology and the Environment.”
This work is the first of its kind in the Himalayas, where landslides caused by earthquakes have been explored in light of potential large earthquakes in the future.
(This story has not been edited by the Devdiscourse staff and is automatically generated from a shared feed.)
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