Gunung Sorik Marapi, Sumatra, Indonesia

Sorik Marapi seen from the west.  Image courtesy T Casadevall, USGS, 1987 via Smithsonian GVP

Flank Collapse at Anak Krakatau, Dec. 22, 2018

Anak Krakatau a week following flank collapse eruption Dec. 22. The vent region has not yet been rebuilt above water level. Highest remaining part of the island is the hyaloclastic ring that used to host the most recent cone. Note also the island has been resurfaced and grown a bit. Image courtesy BBC News, Jan. 3 https://www.bbc.com/news/science-environment-46743362https://www.bbc.com/news/science-environment-46743362

Ongoing Eruptions at Sinabung, Indonesia

Mount Sinabung releases pyroclastic flows seen from Tiga Serangkai, North Sumatra, Indonesia, Wednesday, April 1, 2015. Mount Sinabung, among about 130 active volcanoes in Indonesia, has sporadically erupted since 2010 after being dormant for more then 400 years. (AP Photo/Binsar Bakkara)