Laguna del Maule Volcanic Complex. Image courtesy Sernageomin
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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
Update, Aug. 2019:
In the five years since this was first posted, science continues to grind away, answering a few questions which in turn create a bunch more questions. The Baillie tree ring / ice core team is increasingly of the opinion that the 535 – 540 AD global cooldown was caused by huge volcanic eruptions, at least two of them bracketing the period. A team including Robert A Dull published a paper August 16 entitled “Radiocarbon and geologic evidence reveal ilopango volcano as the source of the colossal ‘mystery’ eruption of 539/40 CE” that appears to nicely define the most recent end of that bracket.
Shishaldin from 11 km altitude. Note the steam from the ice-free crater. Image courtesy AVO, Jun 2015.
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
Schematic of volcanic provinces in Victoria. Older volcanics are depicted in green, Newer in orange, and Macedon – Trentham in blue. Image courtesy Meeuws, et al. https://www.sciencedirect.com/science/article/pii/S0264817216300605
This post will cover remaining volcanic activity in southern Australia. The majority of it is in the southeastern state of Victoria. The most recent activity has spilled over the border to the west into South Australia. Finally, we will take a look at volcanic activity in the Bass Strait, the water separating Tasmania from the rest of the continent and a quick look at volcanic activity in Tasmania.
Tavurvur eruption in Rabaul Caldera. Image courtesy Mountain Forecast.com. https://www.mountain-forecast.com/peaks/Rabaul-caldera
Spica