Pyroclastic flows are the infamous deadly avalanches of superheated gas and debris that killed thousands at Pompeii and in the 1902 Mount Pelée eruption on Martinique. Now, thanks to a very brave scientist, you can watch a pyroclastic flow up close.
This is one of several videos taken during the recent eruption of Guatemala's Santiaguito (or Santa Maria) volcano. At the Eruptions blog, Erik Klemetti explains the background of how this footage was made, what it shows, and why it's so important.
So, when faced with a pyroclastic flow, why would you try to get up close to one? Julio Cornejo, an INSIVUMEH observer from the Santiaguito volcano observatory (OVSAN), did just that to capture some video (see top and below) that has surprised everyone that has seen it. Cornejo was able to film the very far end of a pyroclastic flow generated by the dome collapse at Santiaguito (see above), when it had lost most of its energy but was still moving. At this point a flow is likely still capable of engulfing and suffocating someone in hot ash and gasses, as happened to many people in the 1902 eruption of Mont Pelee. So, Cornejo is very lucky to have made it out alive with this footage, but what he got was remarkable.
Rudiger Escobar Wolf, a volcanology post-doctoral researcher at Michigan Tech who studies volcanoes in Guatemala, posted a sequence of videos from Cornejo and INSIVUMEH and annotated some of the video to understand what we’re seeing. I’ve also watched the video closely and have two here that show some likely never-before-filmed examples of how pyroclastic flows can be destructive even after they slowed to a snail’s pace relative to their usual speed.
A trio of scholars who study the psychology and philosophy of science have written a fantastic paper for Springer’s Sythese looking at the way that climate change conspiracy theorists construct their view of the world, and how these conspiracy theories contain self-contradictory theses (like the idea that climate change can’t be predicted and the idea […]
Princeton University psych prof Susan Fiske published an open letter denouncing the practice of using social media to call out statistical errors in psychology research, describing the people who do this as “terrorists” and arguing that this was toxic because of the structure of social science scholarship, having an outsized effect on careers.
Blue writes, “Peter Watts has be stricken with debilitating pain, loss of range of motion and motor control. Watts’ doctors remain baffled despite a battery of tests, and Watts has reached out to his fans to ask for their theories and ideas as to what might be causing his illness.”
With this comprehensive course in App & Game Development for iOS and Android, you’ll be able to take full advantage of this career opportunity without committing to going back to school full time. You’ll learn how to build immersive, interactive games and apps from start to finish using Python, C#, Unity, and HTML—some of the most in-demand programming […]
CloudPress is a responsive WordPress theme builder that allows you to create a whole site in less than 30 minutes. CloudPress comes with tools like pre-built headers, content blocks, and footers—all you have to do is pick what you like, and drag and drop. With your subscription, you get access to 13 professionally designed WordPress themes, over 80 […]
If you own a dog, you’ve most likely heard of BarkBox – the monthly subscription box for dogs. What started as a simple idea to try out the subscription model on pet owners has since developed a cult following of dog lovers. If you haven’t given it a try yet, this one month free deal is the […]