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Date of Image:
8/15/2021
Date of Next Image:
Unknown
Summary:
Scientists with the Advanced Rapid Imaging and Analysis project (ARIA), a collaboration between NASA's Jet Propulsion Laboratory, Pasadena, California, and the California Institute of Technology in Pasadena, analyzed interferometric synthetic aperture radar (SAR) images from the radar instrument on the Copernicus Sentinel-1A satellite operated by the European Space Agency (ESA) to calculate a map of the deformation of Earth's surface caused by the quake. This false-color map shows the amount of permanent surface movement caused almost entirely by the earthquake, as viewed by the satellite, during a 12-day interval between radar images acquired by the Sentinel-1A satellite on August 3 and August 15, 2021.
In this map, the colors of the surface displacements are proportional to the surface motion. The blue tones show the areas that have moved toward the satellite by as much as 16 inches (40 centimeters) in a combination of up and eastward motion. The blue area that moved towards the satellite is close to the epicenter and likely indicates there was large slip on the fault beneath this area. The area to the west with various shades of red moved away from the satellite, mostly downward or westward, by as much as 8 inches (20 cm). The two areas of significant ground movement (darker red and blue) are both west of the epicenter and indicate the fault rupture proceeded westward from its starting point. Areas with gray are open water or heavy vegetation that prevents the radar measurements from measuring change between satellite images. Scientists use these maps to build detailed models of the fault slip at depth and associated land movements to better understand the impact on future earthquake activity.
Suggested Use:
In this map, the colors of the surface displacements are proportional to the surface motion. The blue tones show the areas that have moved toward the satellite by as much as 16 inches (40 centimeters) in a combination of up and eastward motion. The blue area that moved towards the satellite is close to the epicenter and likely indicates there was large slip on the fault beneath this area. The area to the west with various shades of red moved away from the satellite, mostly downward or westward, by as much as 8 inches (20 cm).
Satellite/Sensor:
Copernicus Sentinel-1 Synthetic Aperture Radar (SAR)
Resolution:
30 meters
Credits:
The Sentinel-1 data were provided by ESA. Contains modified Copernicus data 2021, processed by ESA and NASA/JPL. The NISAR (NASA-ISRO SAR) mission under development will acquire data similar to this wide-swath Sentinel-1 data when it is launched.
Esri REST Endpoint:
See URL section on right side of page
WMS Endpoint:
Data Download:
https://aria-share.jpl.nasa.gov/20210814-Hait_EQ/Displacements/
Date of Image:
8/15/2021
Date of Next Image:
Unknown
Summary:
Scientists with the Advanced Rapid Imaging and Analysis project (ARIA), a collaboration between NASA's Jet Propulsion Laboratory, Pasadena, California, and the California Institute of Technology in Pasadena, analyzed interferometric synthetic aperture radar (SAR) images from the radar instrument on the Copernicus Sentinel-1A satellite operated by the European Space Agency (ESA) to calculate a map of the deformation of Earth's surface caused by the quake. This false-color map shows the amount of permanent surface movement caused almost entirely by the earthquake, as viewed by the satellite, during a 12-day interval between radar images acquired by the Sentinel-1A satellite on August 3 and August 15, 2021.
In this map, the colors of the surface displacements are proportional to the surface motion. The blue tones show the areas that have moved toward the satellite by as much as 16 inches (40 centimeters) in a combination of up and eastward motion. The blue area that moved towards the satellite is close to the epicenter and likely indicates there was large slip on the fault beneath this area. The area to the west with various shades of red moved away from the satellite, mostly downward or westward, by as much as 8 inches (20 cm). The two areas of significant ground movement (darker red and blue) are both west of the epicenter and indicate the fault rupture proceeded westward from its starting point. Areas with gray are open water or heavy vegetation that prevents the radar measurements from measuring change between satellite images. Scientists use these maps to build detailed models of the fault slip at depth and associated land movements to better understand the impact on future earthquake activity.
Suggested Use:
In this map, the colors of the surface displacements are proportional to the surface motion. The blue tones show the areas that have moved toward the satellite by as much as 16 inches (40 centimeters) in a combination of up and eastward motion. The blue area that moved towards the satellite is close to the epicenter and likely indicates there was large slip on the fault beneath this area. The area to the west with various shades of red moved away from the satellite, mostly downward or westward, by as much as 8 inches (20 cm).
Satellite/Sensor:
Copernicus Sentinel-1 Synthetic Aperture Radar (SAR)
Resolution:
30 meters
Credits:
The Sentinel-1 data were provided by ESA. Contains modified Copernicus data 2021, processed by ESA and NASA/JPL. The NISAR (NASA-ISRO SAR) mission under development will acquire data similar to this wide-swath Sentinel-1 data when it is launched.
Esri REST Endpoint:
See URL section on right side of page
WMS Endpoint:
Data Download:
https://aria-share.jpl.nasa.gov/20210814-Hait_EQ/Displacements/