Off the coast of Yemen, in the Red Sea, are a chain of islands called the Zubair Group. Two of them, Haycock (left) and Rugged (right) are about a kilometer long. Things were pretty quiet there until December 2011, when suddenly a new volcano erupted from the water!

Holy wow! I had no idea that area was volcanic, but it turns out it's a rift zone, where tow continental plates are separating. Earthquakes are relatively common, and then of course entirely new volcanoes sometimes pop up, too. 

Now there's a way to part the Red Sea.
Original Image

Blog post

Image credit: NASA Earth Observatory/Jesse Allen, using EO-1 ALI data provided courtesy of the NASA EO-1 team.