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They didn't do it yet,but if you watch the volcanic activity for a period of time last year(s) as this year you can make an idea.
Originally posted by khimbar
Where's the comparable control data for this time last year?
"All" is the key word.I don't remember in the history when "All" were so active.
These volcanoes are all in varying stages of the alert process
Originally posted by diamondsmith
They didn't do it yet,but if you watch the volcanic activity for a period of time last year(s) as this year you can make an idea.
Originally posted by khimbar
Where's the comparable control data for this time last year?
Strange is a nice word, I'd rather say worrying.
Things are going to get very strange in the coming weeks.
A look at the number of volcanoes active per year, over the last few centuries, shows a dramatic increase, but one that is closely related to increases in the world's human population and communication. We believe that this represents an increased reporting of eruptions, rather than increased frequency of global volcanism: more observers, in wider geographic distribution, with better communication, and broader publication. The past 200 years (see plot below) show this generally increasing trend along with some major "peaks and valleys" which suggest global pulsations. A closer look at the two largest valleys, however, shows that they coincide with the two World Wars, when people (including editors) were preoccupied with other things. Many more eruptions were probably witnessed during those times, but reports do not survive in the scientific literature.
If these apparent drops in global volcanism are caused by decreased human attention to volcanoes, then it is reasonable to expect that increased attention after major, newsworthy eruptions should result in higher-than-average numbers of volcanoes being reported in the historical literature. The 1902 disasters at Mont Pelee, St. Vincent, and Santa Maria (see 1902 arrow) were highly newsworthy events. They represent a genuine pulse in Caribbean volcanism, but we believe that the higher numbers in following years (and following Krakatau in 1883) result from increased human interest in volcanism. People reported events that they might not otherwise have reported and editors were more likely to print those reports.
Additional strong evidence that the historical increase in global volcanism is more apparent than real comes from the lower plot below. Here only the larger eruptions (generating at least 0.1 km3 of tephra, the fragmental products of explosive eruptions) are plotted. The effects of these larger events are often regional, and therefore less likely to escape documentation even in remote areas. The frequency of these events has remained impressively constant for more than a century, and contrasts strongly with the apparent increase of smaller eruptions with time.
The number,period of time, intensity,and and global spread.
So what is so different now?
Very interesting article,so they say is based on human attention and not on increasing volcanic activity.
This is what experts say about a perceived increase in volcanic activity
Problem is that one is enough to erupt for ecosystems to disturbances.
Hence the volcanoes popping all over, and if my theory is correct it's only going to get worse, and yes, supervolcanoes will probably erupt
I think they have historical readings, but the data are scattered and probably somewhere there is a common database is not made public.
Ok I can agree with that somewhat, umm what were the readings for this time of year 400 years ago?
But but until recently they were asleep.
They simply don't fall under the dormant category due to fairly minor reasons.
Originally posted by diamondsmith
Very hard to say, is a combination of phenomena and events and we may have not seen some of them yet.Maybe a massive continental drift coupled with other phenomena as magnetic poles reversal,who knows exactly..
Please don't ask because,
I see what you are saying, but I'm interested in hearing why you think it would be a negative thing. Isn't a world-wide pressure release a good thing? You don't want that energy building up.