THANKS GELOGY HUB! I first saw Karymsky's beautiful, distinct and symmetrical cone on, ironically enough, a top 10 video on some things that could be dangerous or are dangerous to life on Earth. That video had a segment on both the Toba caldera system and the Yellowstone caldera system. I think that the segment on the volcanoes was overhyped though, as with almost all media coverage of the Yellowstone caldera system. Sadly, Wikipedia's main image of the Karymsky volcano only shows the very top of the volcano, with the nearby Akademia Nauk lake taking center stage. I should change it soon! That Karymsky's cone appears to be only 6,100 years old reminds me of another beautiful volcano in Kamchatka that we all know of: Klyuchevskoy! Both volcanoes appear to be less than 7,000 years old, very symmetrical, very beautiful and very active! I think you will release a video on the Klyuchevskoy volcano soon! That being said, I did not fully realize that Karymsky was located in a caldera.
Thank you. There are around 300 volcanoes is the spectacular national park in Kamchatka. You can sit on the edge of a rift in the lava and enjoy the radiant heat on one side of you while the other side is chilled by the breeze. Or fry sausages & eggs over a jet of hot gas from the lava. The landscape of tephra is just a black desert, with burnt trees around the edges (and the remains of a dead helicopter).
The threshold for ultra-Plinian eruptions is defined by an eruptive column height of 45 km (28 mi), or 41 km (25 mi) more recently. There does not appear to be an upper limit, so there would not a fourth sub-classification.
You wouldn't happen to be the one attacking OzGeographics, are you? What a mistake that person is making...especially when he releases their information. They're another RU-vidr doing it out of jealousy, so it will be fun dogpiling the culprit and watching their channel and social media presence be obliterated.