UN /UNOSAT uses live/ realtime maps for disaster management:
https://www.unitar.org/unosat/maps?qt-maps_quicktab=1#qt-maps_quicktab
https://unosat.maps.arcgis.com/apps/webappviewer/index.html?id=b9f9da798f364cd6a6e68fc20f5475eb
The content comes from UN-Asign, a phone app by Ansur Technologies for crowdsourcing imagery.
Ansur Technologies also delivers UAV-Asign for UAV usage: