The eruption of Taal Volcano in the Philippines in 1966 ripped open this channel and built this 300-meter diameter tuff cone on the flank of Volcano Island in just two days. Warned by increasing seismicity and the rising temperature of a small crater lake, many inhabitants of the island evacuated and escaped the deadly pyroclastic surges. About 200 people were killed by the eruption, mainly by tsunamis on Lake Taal, the large caldera lake that surrounds the island.
Photo copyright R.W. Decker.