 A report on recent landslides in Thodupuzha, Udumbanchola and Devikulam taluks, Idukki district, Kerala by C. Muraleedharan, Geologist (Sr) and M. P. Muraleedharan, Director, Opn TNPK, Unit Kerala, Thiruvananthapuram (2007)

This landslide took place due to incessant heavy rainfall and poor terrain response due to increase in pore pressure and therefore reduction in shear strength.
Muttanmudi
Pallivasal village
Failed area needs to be protected by afforestation. Local administration and revenue authorities may take precautionary measures by not granting building permit atleast in these highly vulnerable areas. Awareness programme may be arranged in the affected
Following incessant heavy rainfall, the water percolated through thin soil cover as well as through highly jointed bedrock, got channelized and seeped through the break in slope zone and later got dammed up. This caused reduction in the shear strength an