Lineament is the linear feature in the landscape, determined by basic geological structures such as faults.
According to the Geological Survey of India (GSI), the Sonitpur area is located in a complex triangular area defined by the east-west Atherkhet fault, the northwest-southeast Kopili fault, and the north-south boundary.
Regular Earthquakes have been triggered by the two faults and the lineament, as well as the convergence of the Indian plate.
After the 6.4 earthquake on April 28 that destroyed many houses, bridges, and a river embankment, the National Centre of Seismology reported 29 earthquakes in Sonitpur with magnitudes ranging from 2.6 to 4.7.