Short Sharp Science: Newest Canary Island pictured rising from the deep | Science News | Scoop.it
From www.newscientist.com - November 12, 2011 3:45 AM

The recent earthquakes in the Canary Islands of late aren't due to Poseidon the earth-shaker, but a submarine volcano to the south of the island of El Hierro. Hot magma spewing from beneath the surface of the ocean has injected volcanic chemicals into the water, staining the sea green.