Abstract:
Concording with the plate tectonic theory, lithosphere consists of several tectonic plates moving in different
directions and stimulating various tectonic processes and consequencing mountains, earthquakes, volcanoes,
mid-oceanic ridges and oceanic trenches. It is excogitated that three main plate tectonics driving forces
viz. ridge push, slab pull and trench suction together with resistance force viz. collisional resistance, basal
drag etc. maneuvering deformation in Indo-Eurasian collision region. But these forces acting in tandem
are not sufficient in explaining the discrepancies in regional surficial lithospheric deformation pattern
explicitly. Hence, we invoke Gravitation Potential Energy (GPE) derived deviotoric stress in explaining the
deformation pattern of Indo-Eurasian collision region. We also provide explanation for the occurrence of
Mw 7.3 aftershock following the 2015 Mw 7.9 Nepal earthquake construing the GPE as an important proxy
to the deviatoric stress field.
