1 23 Earth Science Informatics ISSN 1865-0473 Volume 8 Number 1 Earth Sci Inform (2015) 8:233-246 DOI 10.1007/s12145-014-0156-4 Appraisal of active deformation from drainage network and faults: inferences from non-linear analysis Saima Siddiqui, Mauro Soldati & Doriano Castaldini