The well-dip in the roof of a lava tube in Tolbachik volcano in Kamchatka.
- Categories: Environmental Issues
- Location: Kamchatka Region, Russia
- Event date: 27.07.2013
- Date published: 29.07.2013
- Author: Alexandr Piragis
- Credit: Sputnik
- Source: Sputnik
- Original: Digital
- Media: JPEG, 4963x3309px, 5.5Mb