# Could the shape or geography of the continents be dramatically changed in a roughly short span of time? [duplicate]

I’m aware that the continents and the tectonic plates they reside on drift, but for there to be any noticeable change in their shape or geography takes millions of years to occur. Is there a known way in which this process may be sped up, OR be changed through some major event (effects of climate change, massive earthquake, super volcanic eruption, meteor impact, etc.)? My understanding of continental drift and plate tectonics is pretty general, so do correct me if I made any mistakes. Also if I need to clarify anything do say so.

The inhabitants and their civilizations are of no concern to me, though I would be interested to know what structures would survive such a drastic change or the likelihood of survival for species. Though none of these are necessary to answer the question.

keep in mind I don’t just mean the subtraction of landmass, I also mean the addition, movement, relocation, and separation of it too. All kinds of changes normal tectonic activity would cause, but sped up (ie. I don’t want to wait 250 million years for Pangaea Ultima or Amasia).

I don't mean a change in terrain or topography. I mean an event big enough to let's say split a continent in half forming two new continents or two continents being pushed together to form one new continent, like pangaea, but this happens in a matter of at most a few hundred years. Their question doesn't seem to cover such drastic changes.

## marked as duplicate by JBH, Renan science-based StackExchange.ready(function() { if (StackExchange.options.isMobile) return; $('.dupe-hammer-message-hover:not(.hover-bound)').each(function() { var$hover = $(this).addClass('hover-bound'),$msg = $hover.siblings('.dupe-hammer-message');$hover.hover( function() { $hover.showInfoMessage('', { messageElement:$msg.clone().show(), transient: false, position: { my: 'bottom left', at: 'top center', offsetTop: -7 }, dismissable: false, relativeToBody: true }); }, function() { StackExchange.helpers.removeMessages(); } ); }); }); Mar 20 at 20:18

• Their question doesn't seem to cover such drastic changes. The older question's most popular answer includes, "water rising could separate a continent into islands," which seems to be the same scale you're looking for (respondents did not assume the Q was about a mountain here or a lake there). If none of the answers to the older question meets your needs, please let us know why. – JBH Mar 20 at 21:54