This example of a sand injective or sand volcano, taking place by the side of the road in Saudi Arabia.

It was captured on a mobile phone and posted on YouTube. I received permission to post from the YouTube author, but the original user is unknown.

For information on sand injectites, such as this, I suggest

HURST, A. & CARTWRIGHT, J.A. 2007. Sand injectites: Implications for Hydrocarbon Exploration and Production. AAPG Memoir, Tulsa, 274 p. ISBN: 978-0-89181-368-2.