article_snippet.sent: Radar images from Europe's Sentinel-1a satellite have revealed the aftermath of the Nepal earthquake in unrivalled detail.
article_snippet.sent: Interferogram over Kathmandu, Nepal, generated from two Sentinel-1A scans on 17 and 29 April 2015 – before and after the Nepal earthquake.
article_snippet.sent: These are the first radar images to reveal the destruction caused by the 7-magnitude earthquake that killed 5,000 people and affected millions more. '
article_snippet.sent: To the north of Kathmandu, the interferogram suggests that the ground receded, and the interferogram also shows how a fault ruptured east from the Nepal earthquake, but did not break the surface.
article_snippet.sent: Combining two Sentinel-1A radar scans from 17 and 29 April 2015, the interferogram shows changes on the ground that occurred during the 25 April earthquake that struck Nepal.
article_snippet.sent: Sentinel-1A interferogram over Kathmandu, Nepal, showing deformation induced by the 25 April earthquake that struck Nepal.
article_snippet.sent: Sentinel-1A interferogram over Kathmandu, Nepal, showing deformation induced by the 25 April 2015 earthquake combines two Sentinel-1A images from 17 and 29 April 2015 .
article_snippet.sent: Professor Wright says this suggests not all the strain in the rocks before the earthquake was released in during the catastrophic event.
article_snippet.sent: The satellite imagery is used to create maps to support relief efforts, such as this ‘grading map’ of Kathmandu showing topographic features and crisis information.
article_snippet.sent: The data also provides data to map changing land cover and deformations such as those produced by Saturday's devastating Earthquake in Nepal (right)