Kerala: Satellite Images Show Wayanad Ravaged by Landslides

Heavy rainfall triggered a massive landslide in Wayanad District, Kerala, originating at an altitude of 1,550 meters. The debris flow has significantly widened the river's course, causing extensive damage to homes and infrastructure the banks. High-resolution satellite images from the Indian Space Research Organisation (ISRO have revealed the extent of the destruction.

The landslide has affected approximately 86,000 square meters of land, with debris flowing nearly 8 kilometers along the Iruvaiphuzha River. The National Remote Sensing Center (NRSC) in Hyderabad deployed ISRO's advanced Cartosat-3 optical satellite and RISAT satellite to capture detailed images of the devastation.

Impact on Local Communities

The impact has been catastrophic, flattening entire villages and trapping many residents under thick layers of mud. Rescue operations are ongoing, involving personnel from the Indian Army and National Disaster Response Force. The scale of destruction is hampering these efforts significantly.

S Abhilash, director of the Advanced Centre for Atmospheric Radar Research at Cochin University of Science and Technology (CUSAT), noted that Kasargod, Kannur, Wayanad, Calicut, and Malappuram districts have experienced heavy rainfall due to an active monsoon offshore trough affecting the Konkan region for two weeks.

Geological Vulnerabilities

Interestingly, satellite data also indicates an old landslide at the same location, underscoring the area's susceptibility to such disasters. According to NRSC's report, torrential rains around Chooralmala town exacerbated this recent landslide by initiating a major debris flow.

The soil saturation after two weeks of continuous rainfall contributed to this disaster. A deep mesoscale cloud system formed off the Arabian Sea coast on Monday led to extremely heavy rain in Wayanad, Calicut, Malappuram, and Kannur districts, resulting in localized landslides.

Future Preparedness

Local officials are now assessing long-term implications. Findings from satellite imagery will aid immediate rescue efforts and help understand geological vulnerabilities better. This information could inform future disaster preparedness and mitigation strategies.

"The crown is located at an approximate elevation of ~1,550 m above sea level," stated NRSC in their report. The ongoing rescue operations face challenges due to the scale of destruction caused by this natural calamity.

The devastating landslide has left over 250 dead days after it occurred in Wayanad. The situation remains dire as rescue teams work tirelessly to reach those still trapped under debris.