Posts about volcanoes mainly in and around the Pacific Ocean, except Americas.
Panoramic photo of Lake Toya and Toya Caldera looking west. Nakajima Island(s) are located in the lake in the right portion of the image. Usu volcano is left of the lake straddling the land between the lake to the right and the ocean to the left. Image courtesy Toya-Usu UNESCO Global Geopark
“Vulkan Papandajan auf Java” (1905). Painting by the German zoologist and naturalist Ernst Haeckel (1834-1919).
G. Papandayan seen from the north. Complete mountain range on the left; zoom into the main crater with the head scarp of the 1772 collapse on the right. (© GMaps)
Papandayan is the volcano you can actually see on satellite images (e.g. Google Earth) even from a view point 800 km above ground – it is the white patch of a collapse scar that stands out in stark contrast from the dark green forest. The volcano sits at the southern end of the Kendang-Papandayan mountain range.
G. Papandayan is generally said to be 2665 m high but there seems to be some confusion as to location and actual height Continue Reading
NASA ISS photo of Raikoke in eruption taken June 22. Active plume with water vapor collar at the base. Water vapor collar at the base may be due to ambient air sucked upwards with the plume. Alternately, it may be due to interaction of pyroclastic flows with surrounding sea water. Image courtesy NASA Earth Observatory.
Simushir Island. Volcanoes named on the image. Photo courtesy Japan Space ASTER, Oct. 2004.
Suwanose-jima island and Otake volcano in its center. Flank collapse and new pyroclastic cone are clearly visible on the center and to the east of the crater. Image screen capture via Google maps.
ISS astronaut photo of Sarychev Peak eruptive plume June 12, 2009. 3 pyroclastic flows are visible at the base of the plume. Brown flow to the left toward the shoreline. Grey – white flow toward the bottom of the photo. Finally, a third dark brown flow to the right toward the opposite shoreline. Image originally courtesy NASA. https://en.wikipedia.org/wiki/Sarychev_Peak
The Southwest side of Avachinsky Volcano 09/2014 (© kuhnmi via Wikimedia)
Although I have known that the Avachinsky is one of the more active volcanoes in Kamchatka, somehow I habitually tended to skip it when checking webcams and reports for new activity in Kamchatka – I saw forever this owl face, this snow-covered, never-changing mountain… That has changed since I came across this wonderful diary by a 19th century German-Baltic geologist and explorer, K. v. Ditmar. He had lived and worked 1851-55 in Petropavlovsk, at the foot of two magnificent volcanoes. Although he didn’t manage to get to the crater – bad weather, strong gas emissions and superstitious company made him abandon two attempts – he loved volcanoes! Continue Reading
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
Yutian volcano in Kunlun Volcanic Group. Image courtesy China Whisperer. http://www.chinawhisper.com/top-6-chinas-amazing-volcanoes/
Satsuma Iojima Island on the rim of the Kikai Caldera. Iojima rhyolite dome is at the upper right. Inamura scoria cone is midway between the peninsula at the lower right and Iojima. Photo courtesy Getty via The Sun. https://www.thesun.co.uk/tech/5572129/underwater-supervolcano-eruption-kill-100-million-people-japan-lava-dome-science/
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