About 800 people living nearby were evacuated as a precautionary measure at the first signs of the second eruption, said Páll Einarsson, a geophysicist at the University of Iceland's Institute of Earth Sciences. There are no reports of casualties so far.

But initial reports suggest glacial melt from Iceland's Eyjafjallajökull volcano, located about 75 miles (120 kilometers) from Reykjavik, has raised local rivers by as much as ten feet (three meters).

A major road has been closed and, as of press time, water continues to gush into the ocean.

Eyjafjallajökull first erupted on March 20, 2010, in a fiery display that sent fountains of lava shooting high into the air and ribbons of lava flowing down cliff faces. (See