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Disaster Management
Pradeep Kumar

08/04/21 09:30 AM IST

Earthquake recording instrument

In news

The National Capital Region of Delhi and its surroundings had experienced minor and small magnitude earthquakes during April to August 2020

Details
  • The epicentre of these earthquakes were located in areas of NE Delhi, Rohtak, Sonipat, Baghpat, Faridabad and Alwar.
  • The National Center for Seismology (NCS),has deployed additional earthquake recording instruments for close monitoring of earthquake activity in and around Delhi
  • These instruments were also deployed to carry out field studies to characterize the subsurface structures using geophysical techniques such as Magneto tellurics.
  • Magneto-telluric (MT) geophysical survey which involves measurement of the time-varying electric and magnetic fields to determine the distribution of electrical conductivity in the subsurface has been carried out in collaboration with the Wadia Institute of Himalayan Geology (WIHG), Dehradun.
  • The MT survey has been completed across major faults of the Delhi region such as Mahendragarh Dehradun Fault, Sohna Fault, Mathura Fault, Moradabad Fault and Great Boundary Fault.
  • Active fault mapping is another study that has been taken up jointly with the Indian Institute of Technology (IIT), Kanpur.
Source: PIB

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