A little-known volcano on a remote Pacific island may have been the source of one of the 19th century’s most powerful ...

They are caused by a static source of magma, often away from plate margins. As the plate moves away from the hotspot, a new volcano island will form.

Like the volcanoes found on Hawaii and Iceland, those on Easter Island are driven by an underlying "hotspot," a plume where molten material rises through the mantle like paraffin wax floating up a ...

A tall fountain of lava is spewing from a volcano on Hawaii's Big Island. A webcam on Tuesday shows vigorous streams of red ...