[Tagging] Active volcanoes

Paul Allen pla16021 at gmail.com
Sun Jan 26 14:32:07 UTC 2020


On Fri, 24 Jan 2020 at 20:44, Kevin Kenny <kevin.b.kenny at gmail.com> wrote:

> On Fri, Jan 24, 2020 at 2:38 PM Paul Allen <pla16021 at gmail.com> wrote:
> > But "active" is too broad a term to be meaningful, I think.
>
> Well, then, let's clarify the intention, narrow the definition, choose
> a more appropriate keyword if necessary, wikify the narrowed
> definition, and use that, rather than rejecting the idea out of hand.
>

Good idea.  So I did some digging.  There are no scientifically-agreed
definitions of the terms.  It's more of a folksonomy that scientists
sometimes
use when talking to "folks."  See
https://en.wikipedia.org/wiki/Volcano#Volcanic_activity
(it's fairly representative of other definitions I've found).  It's messy.
There's a
"it hasn't erupted in X years so it's dormant" definition in there, but
supervolcanoes
like Yellowstone are excluded.  Iceland's volcanoes are very
interconnected.  Etc.

About the only characteristic I've seen so far upon which there is broad
agreement (and is verifiable by ordinary mappers) is the presence of a lava
lake (which many people probably think of when they see the term "active
volcano").  That's mappable, in my opinion.

If we can pin any other terms down more precisely, and show that scientists
agree
with those definitions, and scientific literature that meets a general
scientific
consensus is available classifying volcanoes in those terms, then I'm all
for it.

-- 
Paul
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