The satellite , Sentinel-1a , sends out radio waves and times how long it takes for them to reflect back . The data has been transformed into an 'interferogram ' showing how the land mass has shifted . Scientists count the colored 'fringes ' in the interferogram to detect how much the land has moved . Everest lost an inch of its height in the quake , but still stands at over three feet . An area 75 miles by 30 miles around Kathmandu has risen 29,029 feet .
The satellite , Sentinel-1a , sends out radio waves and times how long it takes for them to reflect back . The data has been transformed into an 'interferogram ' showing how the land mass has shifted . Scientists count the colored 'fringes ' in the interferogram to detect how much the land has moved . Everest lost an inch of its height in the quake , but still stands at 29,029 feet . An area 75 miles by 30 miles around Kathmandu has risen over three feet .