<div id="_htmlarea_default_style_" style="font:10pt arial,helvetica,sans-serif">Dear it may concern/Aagaard,<br><br>I am a PhD student in GFZ
Postdam,
Germany. Currently I am trying to use Pylith to investigate how rate and state friction properties affect long term earthquake
cycles
behaviours.<br><br>I started from my own 3D strike slip geometry with two patches of VW inserted in VS fault (following Kaneko's 2010 Paper) . When
I
tuning parameters of RS law, it appeared some interesting results, seemed like slow slip events.<br><br>But whatever parameters I choose,
one
"characteristic" earthquake happens in several years (say 3-4 years in 600 years' simulation). If the RS geometry is less complex, events happen
in
less time.<br><br>Then I turn to the given example in RS friction law ( 3D/hex8/step14). I found the problem is similar with a little bit better
case
(event happens in 1 year something, refer to pdf attachments). And I try to decrease to very small time step (~day scale), the "instability"
appear(attachment txt file)! <br><br>Is it available to use different time steps
in different seismic periods (say coseismic in seconds, interseismic in years)<br><br>Such problem confused me a long time, any comments
or
suggestions are highly appreciated! Thanks a lot.<br><br>Best wishes<br>Shaoyang<br><br><br> <br>
</div>