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originally posted by: Xcathdra
a reply to: slider1982
This is what a major volcanic eruption looks like. The footage was taken from 10 miles away when it erupted.
Mount. St. Helens - May 1980
A few days ago Spica wrote a post asking us for our most dangerous volcanoes since she is going to give a speech at Ars Electronica in Linz. Normally I try to stay away from discussing megadeath volcanoes since the subject is fairly gruesome. But, I got intrigued by the notion and started thinking about what would be the most dangerous volcano on the planet.
First I had to think up a set of requirements to judge it by. The premiere one would have to be a lot of nearby residents. The second requirement would be that it has a history of frequent medium sized eruptions (VEI-3 to VEI-5). The third requirement is that it should have an eruptive style that poses a large threat to the residents. The fourth requirement is that it should be a known killer volcano, and the fifth one is that it should have the capacity for a large scale eruption (VEI-6 to VEI-7). For those who know the history of volcanic eruptions will know that this is a true recipe for disaster. With this list of requirements in the back of my head I compared it to the list of volcanoes known to me. It was surprising how many well known bad boys in the world that did not meet these requirements. In the end it was though one that climbed out on top of all the others by virtue of being in the top 3 in all of the categories.
Mount Mayon was the top contender, locally known as Bulkang Mayon after the heroine Daragang Magayon (Beautiful Lady in the local language). For those who love stories of love that end badly, read this one.
originally posted by: Guyfriday
a reply to: 727Sky
That's the alert level not the Volcanic Explosivity Index level.
The Alert system only warns of the likelihood of an eruption, while the Volcanic Exploivity Index (VEI) indicates the power that could be released during an eruption.