New Delhi: The Centre announced Tuesday that it will install micro seismic observation systems at Joshimath, the gradually sinking Himalayan town in Uttarakhand. Earth Sciences Minister Jitendra Singh made the announcement at the India-UK Workshop of Geosciences here and said the observation systems will be in place by Wednesday.
Addressing the workshop, Jitendra Singh said there was a critical need for fundamental research on the physical processes that lead to failure of the brittle layers beneath the crust and sub-crust.
Singh noted that human consequences of natural disasters in India were rising rapidly and stressed on the need to devise proper mitigation strategies. Singh said the Ministry of Earth Sciences had established 37 new seismological centres in the last two years for extensive observation facilities, generating a huge database for outcome-oriented analytics.
The minister pointed out that in the next five years, 100 more such seismological centres will be opened across India for improving real time data monitoring and data collection.
Officials said seismic microzonation study for the area would generate risk resilient parameters for safer dwellings and infrastructure. They said Joshimath falls under the highest seismic ‘Hazard Zone V’ as it experiences continuous seismogenic stresses.
Seismic energy generation due to micro-earthquakes may have weakened the strength of the rocks as Joshimath is located in the earthquake rupture zone of the 1999 Chamoli earthquake, the officials pointed out.
Climatic factors such as excessive precipitation and flow of water from mountains into massive cracks and fractures in the sub-surface rocks lead to widening of cracks and hastening the slip in rock material, Singh informed.
Addressing the workshop, Singh said scientific understanding of the processes behind disasters has grown immensely over the past 50 years. There is a need for strengthening further international collaborations like the Indo-UK initiative to fight such disasters.
The two-day workshop was attended by British High Commissioner Alex Ellis; Wendy Matcham, head, Natural Environment Research Council (NERC), UK Research and Innovation (UKRI); OP Mishra, director, National Centre for Seismology and Sukanya Kumar, acting director, UK Research and Innovation India.
