A rock cum debris flow occured at Arichankuzhy due to  heavy rainfall with run out distance of 130m. The geo-scientific cause of the slide was  increase in pore water pressure and decrease in shear strength of the material upslope of the slide resulting
Lateritization  is observed along  the flow path over the freshly exposed weathered rock, bank erosion widened the width of the original 1st order stream along the flow path.
Arichankuzhy  Slide
Arichankuzhy
Heavy downpour increased the pore water pressure and decreased the shear strength of the overburden material upslope of the slide resulting in heavy discharge of material along the first order seasonal streams/nalas. Highly jointed and fractures weathere