A geophysical survey, namely, Magneto-telluric (MT) is being conducted over the Delhi region.
About:
The National Capital Region of Delhi experienced 4 small earthquakes during April – August 2020. These earthquakes were followed by a dozen of micro-events (M<3.0) including, a few aftershocks.
All these events were located by the National Seismological Network (NSN), being operated and maintained by National Seismological Centre (NCS), Ministry of Earth Sciences.
Subsequently, NCS initiated the Magneto-telluric (MT), a geophysical survey over the Delhi region. This survey is carried out in collaboration with Wadia Institute of Himalayan Geology (WIHG), Dehradun.
Magneto-telluric (MT) is a geophysical method which uses natural time variation of the Earth’s magnetic and electric fields to understand geological (underground) structure and processes.
These measurements are conducted across three major seismic sources, namely Mahendragarh-Dehradun Fault (MDF), Sohna Fault (SF) and Mathura Fault (MF).
These measurements will ascertain the presence of fluid, which generally enhances the possibility of triggering of earthquakes.
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