Understanding Micropolar Theory in the Earth Sciences II: The Seismic Moment Tensor

Abstract Seismic events produced by block rotations about vertical axis occur in many geodynamic contexts. In this study, we show that these can be accounted for using the proper theory, namely micropolar and a new asymmetric moment tensor derived. We then apply theory to Kaikōura earthquake (2016/11/14), Mw 7.8, one of most complex earthquakes ever recorded with modern instrumental techniques. Using advanced numerical techniques, compute synthetic seismograms including full it induces measurable differences waveforms proving seismic data record effects observed field. Therefore, developed work provides framework future dynamic source inversions tensors.