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Interferogram showing the coseismic surface displacement in the area of Oaxaca, Mexico, generated from multiple Sentinel-1 scans – before and after the 23 June earthquake.
By combining data from the Copernicus Sentinel-1 mission, acquired before and after the earthquake, changes on the ground that occurred between the two acquisition dates lead to the colourful interference patterns in the images, known as an ‘interferogram’, enabling scientists to quantify the ground movement.
Read full story: Mapping the Oaxaca earthquake from space