hi Francisco,

i've heard of shifting border rivers before and how
they cause problems obviously. i'm attaching a scan of
el paso, tx and how the rio grande shifted and caused
mx-us relations to be strained for 100 years until
finally solved in the early 1960s. they cemented the
riverbed to prevent changes.

what i was really looking for were examples of
shifting plate tectonics/earthquakes creating border
issues, if it's ever happened or if treaties address
an unlikely but possible event.

vc

--- Francisco <xuax@netvisao.pt> wrote:

> Victor Cantore <drpotatoes@y...> wrote:
> > i heard on the news on sunday that there was a
> small
> > earthquake on usmx and it got me to thinking.
> > has a border ever shifted due to a natural
> disaster,
> > earthquake or otherwise? what would happen in that
> > case? do treaties address plate tectonics, etc. at
> > all?
>
> Hi Victor,
> In fact, sometimes river dams provoke artificial
> disasters, which in
> turn change river banks and move islands, disturbing
> the previously
> unshifted centuries-old borders. I'm talking about
> the river
> Minho/Mi�o in PTES northwestern border.
> I helped Jan in a text about this case, which is at
> his Jan S.
> Krogh's GeoSite:
>

http://home.no.net/enklaver/borders/minoriverborder.htm

>
> Francisco,
> Portugal
>
>

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