Date of Image:9/11/2023Date of Next Image:UnknownSummary:Scientists working with Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory and California Institute of Technology, both in Pasadena, California, created this Displacement map with measurements of the land-surface displacements, in the radar Line-of-Sight, caused by the M 6.8 earthquake in the region surrounding Oukaïmedene southwest of Marrakech, Morocco on September 08, 2023. The map was derived from Synthetic Aperture Radar (SAR) images from the Copernicus Sentinel-1 satellites, operated by the European Space Agency (ESA). The team computed the interferometric difference (interferogram or interferometric SAR) between the post-event image acquired on September 11, 2023 and a pre-event image acquired on August 30, 2023, on the Sentinel-1 descending (satellite moving south) track 154. The interferometric SAR (InSAR) measures the component of surface displacement in the line-of-sight (LOS) between the ground and the satellite, which is at an angle of about 40 degrees from the vertical and slightly south of due east. NOTE: The line-of-sight displacement (LOS) measurement is relative, and the dataset has not been calibrated to any ground location so there is a bias of the reference level, which is unknown. This data has not yet been validated. This displacement map should be used as guidance to identify areas of significant ground displacement, and may be less reliable over snow-covered and vegetated areas.Suggested Use:The red tones indicate up or eastward motion (mixed together) and the blue tones indicate down or westward motion.Red colors indicate increasing displacement towards the satellite, up or eastward motion (mixed together), while the Blue areas indicate increasing displacement away from the satellite, down or westward motion (mixed together).NOTE: Small vertical displacements have also occurred, but the primary surface displacements were in the horizontal plane. The InSAR ground displacement results posted here are preliminary results, primarily intended to aid the field response and people who wanted to have a rough first look at the earthquake. This ARIA-share website has always focused on posting preliminary results as fast as possible for urgent response. These preliminary products may or may not be suitable for detailed scientific analysis.Satellite/Sensor:Copernicus Sentinel-1 Synthetic Aperture Radar (SAR)Resolution:90 metersCredits:NASA-JPL/Caltech ARIA TeamThe Sentinel-1 data products contain modified Copernicus Sentinel data (2023), processed by the European Space Agency and analyzed at the NASA Jet Propulsion Laboratory.Esri REST Endpoint:See URL section on right side of pageWMS Endpoint:https://maps.disasters.nasa.gov/ags04/services/morocco_earthquake_202309/aria_displacement_maps/MapServer/WMSServerData Download:https://aria-share.jpl.nasa.gov/202309_Morocco_EQ/Displacements/Sentinel1/D154_20230911_20230830/