Body Waves– and Surface Waves–Derived Moment Tensor Catalog for Garhwal-Kumaon Himalayas

Moment tensor associated with an earthquake is the mathematical representation of the movement along a fault. It comprises nine generalized vector couples (six independent) that describe the material strength at the source, alignment of the fault and the amount of slip. This study presents a moment tensor collection of 16 earthquakes that occurred in Uttarakhand, India between 2010 and 2021. We perform inversion tests by using both body and surface waves. Our goal is to find the minimum misfit solution by performing a grid search over source depths, magnitude, and orientation of fault. A series of inversion tests were performed for each event using varying bandpass for surface and body waves and removing bad stations to obtain the best possible solutions. The results, thus, obtained provide insight into the complex tectonics processes at work.