Sand Geyser - Wierd Natural Phenomenon ?

This phenomenon appeared in the Al-Ahsae city, Eastern Saudi Arabia (2008). Weird phenomenon with the height of spurt up to 9 meters. There are many opinions about this phenomenon, many opinion say that this happen because of a gas leak. Then lift up the sand with a powerful spurt, like fountain dance. This opinion was taken because the location of this phenomenon near by the oil refinery, as we can see in the video below.

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