A submarine eruption is likely occurring at the submerged volcano of Kavachi in the Western Province.

A NASA satellite image from 29 Jan shows a plume of discolored sea water swirling and drifting from the location of the volcano.

The discoloration is likely from suspended volcanic sediments (the fragmented lava) and gasses. Kavachi is an undersea volcano on the southern edge of the Solomon Islands in the western Pacific Ocean.

Kavachi is one of the most active submarine volcanoes in the south-west Pacific Ocean. Located south of Vangunu Island in the Solomon Islands, it is named after a sea god of the New Georgia Group, and is also referred to locally as Rejo te Kavachi (‘Kavachi's oven’).

It erupted dozens of times in the 20th century, often breaking the water surface, only to be eroded back below the water line within a few months.

Whether the new eruption will break the surface and create another new island remains to be seen. Directly above the undersea peak, a bright patch is visible that suggests vigorously churning water—but there is no sign that the eruption has broken the surface.


Source: http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=83025