Locked crustal faults associated with the subducting Indian Lithosphere and its implications in seismotectonic activity in the Central Indo-Burmese Ranges, Northeast India

Northeast India is a geodynamic hotspot for tectonic activities where three different plates viz., Indian, Eurasian and Burma Plates collide deform with respect to each other. moving Indian Plate subducting transversely beneath results in the formation of Indo-Burmese Ranges (IBR). In central IBR, north-south trending Churachandpur-Mao Fault (CMF) situated east Mizoram-Tripura Fold belt. The northwest-southeast Mat River or (MF), which another major crustal-scale strike-slip transverse fault, upholds movement CMF. this work, seismotectonic analysis these two active intra-plate faults are related June-September 2020 earthquake series, have been discussed. It observed from satellite imageries, data confirmed by field investigation that not directly involved generation earthquakes; rather epicenters distributed junction between MF evident stress through some synthetic faults, located north parallel it, close focal solution strongest earthquakes, 5.5 Mw Champhai (on 22nd June at 04:10 IST) Mizoram shows principal nodal plane was aligning along MF. Therefore, it responsible earthquakes than locked zone CMF crustal faults. This juxtaposition has caused shift regime IBR. might be only large devastating region could followed more future.