S21D:
The Mechanical and Seismological Effects of Dynamic Fracturing on Earthquake Source Mechanics, Fault Zone Structure, and Underground Explosions Posters


Submit an Abstract to this Session


Session ID#: 48810

Session Description:
Dynamic rock fracturing on the micro and macro scales influences earthquake mechanics and the seismic radiation from earthquakes and underground explosions. The residual fracture damage in a fault zone can affect the dynamics of future earthquakes. Similarly, the residual damage surrounding a nuclear explosion can affect the coupling of subsequent explosions in the same location. The recent incorporation of microscale damage in large scale models has highlighted its role in a wide range of applications, such as but not limited to: discrimination between nuclear explosions and earthquakes, explosion yield estimation and seismic hazard assessment. This session provides an opportunity for scientists from the fields of earthquake seismology, earthquake source mechanics, fault zone geology, and underground nuclear explosion monitoring to share their latest work.
Primary Convener:  Marshall A Rogers-Martinez, University of Southern California, Earth Sciences, Los Angeles, CA, United States
Conveners:  Souheil M Ezzedine, Lawrence Livermore National Laboratory, Livermore, CA, United States, Charles G Sammis, University of Southern California, Earth Sciences, Los Angeles, CA, United States and Harsha Bhat, Ecole Normale Supérieure, PSL, CNRS UMR 8538, Laboratoire de Géologie, Paris, France
Primary Liaison:  Marshall A Rogers-Martinez, University of Southern California, Earth Sciences, Los Angeles, CA, United States
Chairs:  Marshall A Rogers-Martinez, University of Southern California, Los Angeles, CA, United States, Charles G Sammis, Univ Southern California, Los Angeles, United States and Souheil M Ezzedine, Univ California LLNL, Livermore, United States
OSPA Liaison:  Charles G Sammis, Univ Southern California, Los Angeles, United States

Cross-Listed:
  • MR - Mineral and Rock Physics
  • NG - Nonlinear Geophysics
Index Terms:

5112 Microstructure [PHYSICAL PROPERTIES OF ROCKS]
7209 Earthquake dynamics [SEISMOLOGY]
7219 Seismic monitoring and test-ban treaty verification [SEISMOLOGY]
8010 Fractures and faults [STRUCTURAL GEOLOGY]

Abstracts Submitted to this Session:

3D Orthorhombic Elastic Wave Propagation Simulation of SPE Phase-1 Experiments (370783)
Richard P Jensen, Sandia National Laboratories, Albuquerque, United States and Leiph A Preston, Sandia National Laboratories, Albuquerque, NM, United States
Linear Equivalent Seismic Sources from Simulations of Underground Chemical Explosions (374463)
Leiph A Preston, Sandia National Laboratories, Albuquerque, NM, United States, Mehdi Eliassi, Sandia National Laboratories, Albuquerque, United States and Christian Poppeliers, Sandia National Laboratories, Geophysics Department, Albuquerque, United States
Experimental and Numerical studies of DAG-1 and DAG-2 Source Physics Experiments (448075)
Souheil M Ezzedine1, Oleg Vorobiev1, Arben Pitarka2, Keehoon Kim3, Tarabay Antoun1 and William R Walter1, (1)Lawrence Livermore National Laboratory, Livermore, CA, United States, (2)Lawrence Livermore National Laboratory, Livermore, United States, (3)Lawrence Livermore National Laboratory, Geophysical Monitoring Program, Livermore, United States
Effect of damage and spallation on Rg waves for SPE-5 (Invited) (379773)
Zhou Lei1, Esteban Rougier2, Howard J Patton3, Carene S Larmat4 and Christopher R Bradley4, (1)Los Alamos National Laboratory, EES-17, Los Alamos, United States, (2)Los Alamos National Laboratory, Los Alamos, United States, (3)Los Alamos National Laboratory, EES-17, Los Alamos, NM, United States, (4)Los Alamos National Laboratory, Los Alamos, NM, United States
Dynamic Rupture and Source Properties in a Damage-Breakage Rheology Model (357769)
Vladimir Lyakhovsky1, Ittai Kurzon1, Omri Salomon1 and Yehuda Ben-Zion2, (1)Geological Survey of Israel, Jerusalem, Israel, (2)University of Southern California, Department of Earth Sciences and Statewide California Earthquake Center, Los Angeles, CA, United States
The Effect of Fracture Damage on the Seismic Moment of an Explosion: Comparing Results from an Inversion with Explicit Calculations of the Stress Glut (383819)
Marshall A Rogers-Martinez, University of Southern California, Earth Sciences, Los Angeles, CA, United States and Charles G Sammis, Univ Southern California, Los Angeles, United States
Ultrasound Probes of the Damage Evolution in Impulsive Fragmentation of Rocks (447117)
Hoagy O. OGhaffari, PhD, Massachusetts Institute of Technology, Earth, Atmospheric, and Planetary Sciences, Cambridge, United States, Rene C St. Julien, University of Texas at Arlington, Arlington, TX, United States, Farrokh Sheibani, Massachusetts Institute of Technology, Cambridge, MA, United States and W. Ashley Griffith, Ohio State University, School of Earth Sciences, Columbus, OH, United States
Triggering mechanisms of aftershocks from explosions and earthquakes using physics-based simulations. (381163)
Kayla Kroll1, Arben Pitarka2, Sean Ricardo Ford1, William R Walter1 and Keith B Richards-Dinger3, (1)Lawrence Livermore National Laboratory, Livermore, CA, United States, (2)Lawrence Livermore National Laboratory, Livermore, United States, (3)University of California, Riverside, Earth and Planetary Sciences, Riverside, CA, United States
Radiation and Overall Energy Budget of Earthquake Ruptures with Secondary Dynamic Fracturing in Off-fault Medium (Invited) (360659)
Kurama Okubo, National Research Institute for Earth Science and Disaster Resilience (NIED), Tsukuba, Japan; Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, Harsha Bhat, Ecole Normale Supérieure, PSL, CNRS UMR 8538, Laboratoire de Géologie, Paris, France, Esteban Rougier, Los Alamos National Laboratory, Los Alamos, United States and Yann Klinger, Université de Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France

See more of: Seismology