Uttarkashi Floods | ISRO Satellite Images Show The Destruction Caused By Flash Floods Satellite images, extracted by the Indian Space Research Organisation (ISRO), have revealed the scale of destruction caused by the deadly flash floods in Uttarakhand's Uttarkashi earlier this week. The disaster, on August 5, killed five people and left over 50 people missing. Experts suspect the burst of a glacial pond triggered the deluge.