Large-scale Ground displacement on the Himalayas

EOC radar analysis reveals large-scale ground displacement on the Himalayas, caused by the Nepal earthquake.

Image credit DLR German Aerospace Center

The above image generated using data acquired by Sentinel-1A, shows how and where the land uplifted and sank from the 7.8-magnitute earthquake that struck Nepal on 25 April 2015.

Near the boundary of the Indian and Eurasian tectonic plates, blue shows areas of uplift of up to 0.8 m towards the satellite (called ‘line of sight’) which could be caused by a vertical uplift of 1 m. The yellow area depicts areas of subsidence, a movement that often occurs as a counter movement to the uplift in subduction zones (where one plate dips below the other) during earthquakes. Additionally, a horizontal north–south shift of up to 2 m was detected.

the Himalayas from spaceThe Himalayas (meaning “abode of snow”) from space.   Credit NASA

via ESA

sources DLR German Aerospace Center,  Earth Observation Center