News Karnataka
Thursday, January 27 2022


Hydro-seismicity reason for tremors in Bidar, Kalaburagi: NGRI

Bengaluru: National Geophysical Research Institute’s (NGRI) preliminary study has revealed that the tremors in Bidar and Kalaburagi Districts in North Karnataka are related to hydro-seismicity. A phenomenon that occurs mostly post-monsoon.

Karnataka State Disaster Management Authority has revealed that NGRI’s detailed analysis of the micro tremors in the above two regions have brought out this findings. Further, the study revealed that within crustal volumes having fracture permeability, a natural increase in hydraulic head due to the elevation of the water table in recharge areas of groundwater basins increases the stress in earth triggering micro tremors, and at times accompanied by sound. Again, these occur due to shallow earthquakes that generate high-frequency surface waves, which is quite common and not dangerous.

Also, NGRI will send team of scientists to these regions in coming two days to conduct study and ascertain conditions in the field.

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