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Unformatted text preview: e ridges .
Fault plane s olutions als o play ed the k ey role in the dis c overy that the deep earthquak e
z ones in s ome s ubduc ting s labs are under c ompres s ion, others are under tens ion. Beach Ball Calculator  There are s everal programs available to prepare Foc al Mec hanis m Solutions (FMS)[whi c h?].
BBC, a MATLAB bas ed tool box , is available to prepare the beac h ball diagrams . This
s oftware plots the firs t motion polarity data arrived at different s tations . The c ompres s ion and
dilation are s eparated us ing mous e help. A final diagram is prepared automatic ally . en.wikipedia.or g /wiki/Focal_mechanism 3/3...
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- Spring '14