Global Volcanism Program | Image GVP-11989
Steam rises from lava flows from Montagu Island entering the sea on the north side of the island on January 13, 2006. Satellite thermal alerts were first detected on October 20, 2001 and continued for many years. Satellite imagery showed that the lava flow had reached the north coast in September 2005 and began forming a new lava delta.
Photo courtesy of Dave Hall, Frikkie Viljoen and Ian Hunter, 2006 (SA Argulhas and South African Weather Service.