Abstract
We assess the potential of additional rotational ground motions to increase the resolution of the full seismic moment tensor and its centroid depth during waveform inversion. For this purpose, we set up a test case of a shallow, medium-sized strike-slip source. In two scenarios, one based on theoretical station distribution and the other based on real station distribution, we compare the results based on inversion of translational ground motion data only and based on both, translational and rotational ground motion data. The inversion is done with a Bayesian approach to overcome the drawbacks of deterministic approaches and provide a comprehensive quantification of uncertainties. Our results indicate that the resolution of the moment tensor can be increased drastically by incorporating rotational ground motion data. Especially, the usually problematic components Mxz and Myz as well as all components containing spatial derivatives with depth benefit most. Also, the resolution of the centroid depth is much better.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
