April 11, 2021
Why there’s a need to study the ongoing subsurface deformation that makes the Himalayan region vulnerable to large earthquakes
Scientists have found that the Himalayas are not uniform and assume different physical and mechanical properties in different directions a property present in crystals that is called ‘anisotropy’. This could result in significantly large earthquake events in the Himalayas.
The north-west region of India, an area covering Garhwal and Himachal Pradesh, has been hit by four destructive moderate to great earthquakes since the beginning of the 20th century Kangra (1905), Kinnaur (1975), Uttarkashi (1991) and Chamoli (1999).
These seismic activities manifest large-scale subsurface deformation and weak zones, underlining the need for deeper insights into the ongoing deformation beneath these tectonically unstable zones.
Dehradun
Uttaranchal
India
Kangra
Himachal-pradesh
Garhwal
Chamoli
Uttarkashi
Kinnaur
Wadia-institute-of-himalayan-geology
Wadia-institute
Ministry of Home Affairs Disaster Management Division (National Emergency Response Centre) Situation Report on the Glacial Outburst at Reni in Chamoli District Uttarakhand as on 07.04.2021 up to 1930 hrs
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1. Details of incident : -
On 07.02.2021 at about 1000 hours an avalanche has occurrd in the upper catchment of Rishiganga river, a tributary of Alaknanda river in Chamoli District of Uttarakhand, which led to sudden rise in the water level of Rishiganga River. Due to flash flood on account of rising of water levels in the river Rishiganga, a functional Rishiganga small hydro project of 13.2 MW was washed away. The flash flood also affected the under construction 520 MW NTPC Hydro Power Project downstream at Tapovan on the river Dhauli Ganga.
India
Uttaranchal
Alaknanda-river
India-general
Uttarakhand
Dhauli-ganga
Wadia-institute-of-himalayan-geology
National-technical-research-organisation
Defence-research
Team-of-snow-avalanche-study-establishment
Public-information-centre
Indian-navy
ANI | Updated: Apr 09, 2021 19:44 IST
New Delhi [India], April 9 (ANI): Scientists have found that the Himalayas are not uniform and assume different physical and mechanical properties in different directions - a property present in crystals called anisotropy which could result in significantly large earthquake events in the Himalayas.
The northwestern region of India, an area covering Garhwal and Himachal Pradesh, has been hit by four destructive moderate to great earthquakes since the beginning of the 20th century the Kangra earthquake of 1905, the Kinnaur earthquake of 1975, the Uttarkashi earthquake of 1991, and the Chamoli earthquake of 1999.
A Science and Technology Ministry release said that these seismic activities manifest large-scale subsurface deformation and weak zones, underlining the need for deeper insights into the ongoing deformation beneath these tectonically unstable zones.
Dehradun
Uttaranchal
India
Kangra
Himachal-pradesh
Garhwal
New-delhi
Delhi
Kharagpur
West-bengal
Chamoli
Uttarkashi