This video clip, "Strange Hole in the desert Blows Sand into the air in Saudi Arabia" (alternative link), shows a hole in the desert that erupts like a geyser, except with sand instead of water. It is apparently located in the Aljof area in the north of Saudi Arabia.
The commenters on this video (and its duplicates) have come up with many conjectures, including:
- natural gas from a freshly-drilled mine
- a broken pipeline underneath.
- a pressure build up of certain gases, like methane.
- a fake video.
- seismic or volcanic activity.
Can anyone explain what this phenomena is?