https://www.aljazeera.com/gallery/2021/10/13/croatia-repair-of-mecencani-sinkholes-about-to-begin
Croatia: Repair of Mecencani sinkholes about to begin | Earthquakes News | Al Jazeera
The sinkholes made a dramatic appearance less than a week after a magnitude 6.4 quake hit Croatia on December 29, 2020.