T43C:
Interrelation between Seismicity and Gravity Field Anomalies: New Insights into Earthquake Rupture Processes I Posters

Submit an Abstract to this Session Please know the abstract submission deadline has passed. There are no exceptions to this deadline and no new abstracts can be submitted.
You can still search the program to see your colleague�s abstract submissions as well as the sessions submitted for the 2016 Fall Meeting. The final program will be released in early October.


Session ID#: 13192

Session Description:
A relation exists between seismicity and gravity field in terms of masses which affect earthquake rupture propagation and mass redistribution during large earthquakes. Using terrestrial and high resolution satellite data, stationary anomalies and temporal changes of the gravity field can be observed. The stationary anomalies correlate in areas of large moment release with extreme values of gravity anomalies. Temporal changes, instead, are the results of Earth surface and volume changes caused by co-seismic and post-seismic deformations. Both types of observations disclose new insight in earthquake rupture processes. The identification of stationary features which persist through various seismic cycles would be a remarkable contribution to hazard and risk assessment. Observed gravity changes can be used to obtain independently determined seismic source parameters similar to those from the centroid-moment-tensor analysis. Transient gravity perturbations can improve our understanding of the seismic cycle and would have an essential influence on earthquake early warning.
Primary Convener:  Monika Margarete Sobiesiak, University of Kiel, Kiel, Germany
Conveners:  Hans-Juergen Goetze, University of Kiel, Institute for Earth Sciences, Kiel, Germany and Gabriele Cambiotti, Universita degli Studi di Milano, Earth Science Department, Milano, Italy
Chairs:  Gabriele Cambiotti, Universita degli Studi di Milano, Earth Science Department, Milano, Italy and Walid Ben Mansour, Washington University in Saint Louis, Earth, Environmental and Planetary Sciences, Saint Louis, United States
OSPA Liaison:  Gabriele Cambiotti, Universita degli Studi di Milano, Earth Science Department, Milano, Italy

Cross-Listed:
  • S - Seismology
Index Terms:

1217 Time variable gravity [GEODESY AND GRAVITY]
1219 Gravity anomalies and Earth structure [GEODESY AND GRAVITY]
7209 Earthquake dynamics [SEISMOLOGY]
7215 Earthquake source observations [SEISMOLOGY]

Abstracts Submitted to this Session:

Temporal change of anisotropy at Mount Fuji at the time of the 2011 Tohoku earthquake (119432)
Maria Saade1, Kohtaro Araragi2, Jean-Paul Montagner3, Philippe Roux4 and Florent Brenguier4,5, (1)Sixense Geophysics, Paris, France, (2)Earthquake Research Institute, University of Tokyo, Tokyo, Japan, (3)CNRS, Institut de Physique du Globe de Paris, Paris, France, (4)Université Joseph Fourier, Grenoble, France, (5)Université Joseph Fourier Grenoble, Grenoble, France
An Analytical Approach to Estimate Curvature Effect of Coseismic Deformations (124843)
Jie Dong1, Wenke Sun2, Xin Zhou1 and Rongjiang Wang3, (1)UCAS University of Chinese Academy of Sciences, Beijing, China, (2)Key Laboratory of Computational Geodynamics, Chinese Academy of Sciences, Beijing, China, (3)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Re-damage of the near-surface structures induced by the 2007 Mentawai great earthquake doublet (132782)
Wen-Che Yu1, Teh-Ru Alex Song2 and Jun-Ting Lin1, (1)Academia Sinica, Taipei, Taiwan, (2)University College London, Department of Earth Sciences, London, United Kingdom
High Resolution, Time-lapse Reflection Imaging from Interferometry of Microearthquake Sources (142819)
Doyeon Kim, Imperial College London, Earth Science and Engineering, London, SW7, United Kingdom and Larry D Brown, Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States
Pre-seismic gravity anomalies before Linkou Ms6.4 earthquake by continuous gravity observation of Crustal Movement Observation Network of China (146974)
Xinsheng Wang, National Earthquake Infrastructure Service, Beijing, China and Honglei Li, Institute of Geodesy & Geophysics, Hubei, China
Numerical Computation of Transient Gravity Perturbations from Seismic Ruptures with Earth Normal Modes (151735)
Kévin Juhel, Institut de Physique du Globe de Paris, Paris, France
Application of High Resolution Data Sets to Seismicity/Gravity Field Interactions on Local Scale – An Example From Northern Chile (156813)
Monika Margarete Sobiesiak1, Benjamin D. Gutknecht2, Theresa Schaller1, Pia Victor3 and Hans-Juergen Goetze4, (1)University of Kiel, Kiel, Germany, (2)University of Kiel, Institut für Geowissentschaften, Kiel, Germany, (3)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (4)University of Kiel, Institute for Earth Sciences, Kiel, Germany
Detecting Batholithic Structures That Influence Seismogenic Processes in the North Chile Seismic Gap With Seismological and Gravity Data (157237)
Theresa Schaller1, Hans-Jürgen Götze2, Benjamin D. Gutknecht2 and Monika Margarete Sobiesiak2, (1)Dresden University of Technology, Dresden, Germany, (2)University of Kiel, Institute of Geosciences, Kiel, Germany
A Preliminary Study of Seismic Risk in the Pyongyang Area, North Korea (132822)
Su Young Kang, Pusan National University, Institute of Geologic Hazard and Industrial Resources, Busan, Korea, Republic of (South) and Kwang-Hee Kim, Pusan National University, Department of Geological Science, Busan, Korea, Republic of (South)
Satellite Gravity Gradients Bound Rupture Domains on Subduction Zone Megathrusts (163218)
Ray E Wells, U.S. Geological Survey, Portland, OR, United States and Richard J Blakely, USGS, Menlo Park, CA, United States

See more of: Tectonophysics