Global Volcanism Program | Image GVP-10612
Recently-emplaced lava flows are seen along a SSE line of vents leading towards the summit of Pago in this 16 September 2002 view. The Pago cone that was constructed within the 5.5 x 7.5 km Witori caldera, which formed around 3,300 years ago. Since its formation a few hundred years ago the cone has grown to a height above the caldera rim. A series of ten lava flows, one of which underlies the area of scorched vegetation left of the 2002 lava flows, cover much of the caldera floor.
Photo courtesy of Elliot Endo, 2002 (U. S. Geological Survey Volcanic Disaster Assistance Program).