S44B:
Seismic Source Parameter Studies: Inversion and Uncertainty II

Submit an Abstract to this Session



Session ID#: 32779

Session Description:
A variety of high–quality seismic and geodetic data in conjunction with recent advances in computational methods and uncertainty analysis enable improved understanding and interpretation of seismic source processes. Fault orientation is important for stress field investigations, while other seismic source components can indicate geometrical or structural complexities in the fault zone, crack opening and closing, fluid movement or mineral phase changes. Accounting for uncertainty plays a critical role in accurate characterization of seismic sources and interpretation. We invite contributions on observational, analytical and computational work on the source processes with a special interest in complete waveform inversion accounting for heterogeneous Earth structure and uncertainty analysis. Of particular interest are studies of seismic moment tensor and accompanying uncertainty in volcanic or geothermal environments, mines, explosions and deep subduction zones.
Primary Convener:  Marija Mustac, Australian National University, Canberra, ACT, Australia
Convener:  Hrvoje Tkalčić, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia
Chairs:  Hrvoje Tkalčić, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia and Marija Mustac, Australian National University, Canberra, ACT, Australia
OSPA Liaison:  Marija Mustac, Australian National University, Canberra, ACT, Australia

Cross-Listed:
  • T - Tectonophysics
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

3275 Uncertainty quantification [MATHEMATICAL GEOPHYSICS]
3285 Wave propagation [MATHEMATICAL GEOPHYSICS]
7215 Earthquake source observations [SEISMOLOGY]
7219 Seismic monitoring and test-ban treaty verification [SEISMOLOGY]

Abstracts Submitted to this Session:

Uncertainties for seismic moment tensors and applications to nuclear explosions, volcanic events, and earthquakes (Invited) (231980)
Carl Tape1, Celso R Alvizuri2, Vipul Silwal3 and Walter Tape2, (1)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, United States, (2)University of Alaska Fairbanks, Fairbanks, AK, United States, (3)University of Alaska Fairbanks, Geophysical Institute and Department of Geosciences, Fairbanks, AK, United States
A trial of reliable estimation of non-double-couple component of microearthquakes (231224)
Kazutoshi Imanishi and Takahiko Uchide, Geological Survey of Japan, AIST, Tsukuba, Japan
Hamiltonian Monte Carlo Inversion of Seismic Sources in Complex Media (215069)
Andreas Fichtner, ETH Zurich, Institute of Geophysics, Zurich, Switzerland and Saulė Simutė, ETH Zurich, Department of Earth Sciences, Institute of Geophysics, Zurich, Switzerland
Improved source inversion from joint measurements of translational and rotational ground motions (Invited) (231261)
Stefanie Donner1, Moritz Bernauer2, Michael Reinwald2, Celine Hadziioannou3 and Heiner Igel4, (1)University of Potsdam, Potsdam, Germany, (2)Ludwig Maximilian University of Munich, Munich, Germany, (3)Universität Hamburg, Institute for Geophysics, Hamburg, Germany, (4)LMU Munich, Department of Earth Sciences, Munich, Germany
Explosion Generated Seismic Waves and P/S Methods of Discrimination from Earthquakes with Insights from the Nevada Source Physics Experiments (230380)
William R Walter1, Sean Ricardo Ford2, Arben Pitarka1, Moira L Pyle2, Dr. Michael Pasyanos, Ph.D.2, Robert J Mellors3 and Douglas A. Dodge2, (1)Lawrence Livermore National Laboratory, Livermore, United States, (2)Lawrence Livermore National Laboratory, Livermore, CA, United States, (3)LLNL L-046, Livermore, United States
Understanding Uncertainties of Stress Drop Estimation at Parkfield (260847)
Jiewen Zhang, University of Oklahoma, School of Geosciences, Norman, OK, United States, Xiaowei Chen, The University of Oklahoma, School of Geology and Geophysics, Norman, OK, United States and Rachel E Abercrombie, Boston University, Boston, MA, United States
Toward regional corrections of long period CMT inversions using InSAR  (262489)
Nader Shakibay Senobari, University of California Riverside, Riverside, CA, United States, Gareth Funning, University of California Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States and Ana MG Ferreira, Instituto Superior Técnico, Lisbon, Portugal
Teleseismic and regional data analysis for estimating depth, mechanism and rupture process of the 3 April 2017 MW 6.5 Botswana earthquake and its aftershock (5 April 2017, MW 4.5) (216412)
Jean Letort, ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France, Aurélie Guilhem Trilla, CEA - France, Arpajon Cedex, France, Sean Ricardo Ford, Lawrence Livermore National Laboratory, Livermore, CA, United States, Olivier Sèbe, CEA Commissariat à l'Energie Atomique DAM, Arpajon Cedex, France, Mathieu Causse, University Grenoble Alpes, Grenoble, France, Fabrice Cotton, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, Michel Campillo, ISTerre Institute of Earth Sciences, CNRS, Université Grenoble Alpes, Saint Martin d'Hères, France and Gaëlle Letort, Institut Curie, Mines Paris Tech, Inserm, Paris, France

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