[cig-commits] commit: More work on intro.

Mercurial hg at geodynamics.org
Tue Aug 23 16:30:30 PDT 2011


changeset:   49:da124d6b1689
tag:         tip
user:        Brad Aagaard <baagaard at usgs.gov>
date:        Tue Aug 23 16:30:21 2011 -0700
files:       faultRup.tex
description:
More work on intro.


diff -r 2e5e57c50da4 -r da124d6b1689 faultRup.tex
--- a/faultRup.tex	Thu Aug 18 13:34:25 2011 -0700
+++ b/faultRup.tex	Tue Aug 23 16:30:21 2011 -0700
@@ -78,14 +78,31 @@ the physical properties in order to make
 the physical properties in order to make the calculations tractable
 \cite{Ward:1992,Rundle:etal:2006,Pollitz:Schwartz:2008,Dieterich:Richards-Dinger:2010}.
 
-Recently, several studies have attempted to examine a broader
-space-time window in order to remove simplifying assumptions and more
-accurately capture the complex interactions over the earthquake
-cycle. [ADD EXAMPLES, Lapusta, Duan/Oglesby, Kaneko].
+Several recent dynamic spontaneous rupture modeling studies have
+attempted to examine a broader space-time window in order to remove
+simplifying assumptions and more accurately capture the complex
+interactions over the earthquake cycle. For example,
+\citeN{Duan:Oglesby:2005} simulated multiple earthquake cycles on a
+fault with a bend in order to capture the spatial variation in the
+stress field around the bend, which they found to have a strong role
+in determining whether a rupture would propagate past the bend. By
+spinning up the model over many earthquake cycles, they obtained a
+much more realistic stress field immediately prior to rupture compared
+with assuming a simple stress field or calculating the stress field
+from a static analysis. \citeN{Chen:Lapusta:2009} examined the
+behavior of small repeating earthquakes by modeling a stable sliding
+region (friction increases with slip rate) surrounding an unstable
+sliding region (friction decreases with slip rate). They found that
+the aseismic slip occurring within the unstable patch between ruptures
+contributed a significant fraction of the long-term slip. As a result,
+their simulations displayed a complex interaction between aseismic
+slip between earthquakes and coseismic slip that would not have been
+possible if they did not explicitly model the interseismic
+deformation. \citeN{Kaneko:etal:????}
 
-\citeN{Duan:Oglesby:2005}
-\citeN{Chen:Lapusta:2009}
-\citeN{Kaneko:etal:????}
+[ADD EXAMPLES, Lapusta, Duan/Oglesby, Kaneko].
+
+
 
 Collectively, these studies suggest a set of desirable features for
 models of the earthquake cycle in order to capture both the slow



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