ARIA Damage Proxy Map (Copernicus Sentinel-1) for the Aegean Sea Earthquake on 10/30/2020

Date of Image: 10/30/2020 Date of Next Image: Unknown: Summary: The Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory and California Institute of Technology, both in Pasadena, California, created this Damage Proxy Map (DPM) depicting areas that are likely damaged by the recent Mw 7.0 (October 30, 2020) earthquake beneath the Aegean Sea between Samos, Greece and Izmir, Turkey. The map was derived from synthetic aperture radar (SAR) images on October 30, 2020 by the Copernicus Sentinel-1 satellites operated by the European Space Agency (ESA). The pre-event images were taken before (October 18, 2020 and October 24, 2020) the earthquake. The image covers an area of 337 by 175 kilometers (210 by 108 miles). Each pixel measures about 30 meters across. The color variation from yellow to red indicates increasingly more significant surface change. Preliminary validation was done by comparing with the Media reports. This damage proxy map should be used as guidance to identify damaged areas, and may be less reliable over vegetated areas. For example, the scattered colored pixels over vegetated areas may be false positives, and the lack of colored pixels over vegetated areas does not necessarily mean no damage. This map is most sensitive to building damage, but small scale change or partial structural damage may not be detected by this map. Suggested Use: This damage proxy map shows surface change with yellow to red indicating more significant change or building damage due to the explosion. The map may be less reliable over vegetated areas. The lack of colored pixels over vegetated areas does not necessarily mean no damage. Small scale change or partial structural damage may not be detected by this map. Satellite/Sensor: Copernicus Sentinel-1 Synthetic Aperture Radar (SAR) Resolution: 30 meters Credits: Contains modified Copernicus Sentinel data, processed by ESA. Analyzed by the NASA-JPL/Caltech ARIA team. This task was carried out at JPL funded by NASA. Esri REST Endpoint: See URL section on right side of page WMS Endpoint: https://maps.disasters.nasa.gov/ags04/services/aegean_sea_earthquake_202010/aria_dpm_sentinel1_20201030/ImageServer/WMSServer Data Download: https://aria-share.jpl.nasa.gov/20201030-Samos-Izmir-EQ/DPM/