Damage Assessment in Al Bab, Syria as of 11 February 2023

Name: Damage Assessment in Al Bab, Syria as of 11 February 2023
Creator: United Nations Satellite Centre (UNOSAT)
License: http://www.opendefinition.org/licenses/cc-by-sa

✦ DISCOVERED BY ORIONAIUnited Nations Satellite Centre (UNOSAT)Buildings and infrastructureSyrian Arab Republic

Syrian Arab Republic

About this dataset

**UNOSAT code EQ20230206SYR, GDACS Id: 1357372** This map illustrates the potentially damaged structures/buildings affected by the 6th of February 2023 earthquake in Al Bab and in Al Bab district (Aleppo governorate), Syria as detected from a Pleiades very high resolution satellite image acquired on 11 February 2023. UNOSAT identified 16 damaged structures and 85 potentially damaged. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to United Nations Satellite Centre (UNOSAT).

Documentation

UNOSAT datasets and maps are produced using a variety of methods. In general, analysts closely review satellite imagery, often comparing two or more images together, and determine notable changes between the images. For damage assessments, refugee or IDP assessments, and similar analyses, these changes are then manually documented in the vector data by the analyst. For flood extractions, landcover mapping and similar analyses, a variety of automated remote sensing techniques are used to extract the relevant information which is then reviewed and revised as necessary by the analyst. In all cases, resulting data is then loaded into a standardized UNOSAT geodatabase and exported asshapefiles for dissemination. This is a preliminary assessment and has not yet been validated in the field. It is important to consider the characteristics of the source imagery used in the analyses when interpreting results. For damage assessments it should be noted that only significant damage to the structural integrity of the buildings analyzed can be seen in imagery, while minor damage such as cracks or holes may not be visible at all. For flood extractions using radar data it is important to note that urban areas and highly vegetated areas may mask the flood signature and result in underestimation of flood waters. Users with specific questions or concerns should contact unosat@unitar.org to seek clarification.

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Damage Assessment in Al Bab, Qabasin and Bza'a towns, Syria as of 11 February 2023

**UNOSAT code EQ20230206SYR, GDACS Id: 1357372** This map illustrates the potentially damaged structures/buildings affected by the 6th of February 2023 earthquake in Al Bab and surrounding areas of Qabasin and Bza'a in Aleppo governorate as detected from a Pleiades very high-resolution satellite image acquired on 11 February 2023. Within the analyzed area, UNOSAT identified 37 damaged structures and 168 potentially damaged. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to United Nations Satellite Centre (UNOSAT).Centre (UNOSAT).