HR: 17:25h
AN: NG24B-02 INVITED     [Abstracts]
TI: Equilibrium, Non-Equilibrium and Critical Points; Universality in Models of Earthquake Faults
AU: * Klein, W
EM: klein@bu.edu
AF: Boston University, 590 Commonwealth Ave, Boston, MA 02215 United States
AU: Xia, J
EM: jcxia@physics.clarku.edu
AF: Clark University, Department of Physics, Worcester, MA 01610 United States
AU: Gould, H
EM: hgould@clarku.edu
AF: Clark University, Department of Physics, Worcester, MA 01610 United States
AU: Rundle, J B
EM: jbrundle@ucdavis.edu
AF: University of California at Davis, One Shields Ave., Davis, CA 95616 United States
AB: Due to the presence of scaling laws that describe earthquake fault system data (Gutenburg-Richter, Omori) it has long been thought that earthquakes have something to do with critical phenomena. However, spatial and temporal clustering, runup to failure as seen in, for example, the increase in Benioff strain and the success, albeit limited, of forecasting algorithms indicates that critical phenomena is not the entire story. Models that produce scaling are quite common however models that reproduce the wide range of behavior seen in fault systems are, at present, not available. We have pursued a long term study of various forms of models and have obtained some understanding of their physics. The purpose of this talk is to describe the complex behavior of a large class of models and to indicate how their behavior on several scales can aid in forecasting.
DE: 7260 Theory and modeling
DE: 3210 Modeling
DE: 3220 Nonlinear dynamics
SC: Nonlinear Geophysics [NG]
MN: 2004 AGU Fall Meeting