"-1337000676802643419" Its a double volcanoe! what does it mean? the volcanoe stretches quite a bit on the other side as well, and the rest of the map is pretty awesome too. Oh also by 1.5 tekkit i mean tekkit which runs on minecraft 1.2.5(derpderp) Its on the latest devbuild available through the launcher lol
Pretty sure that volcanoes are generated randomly as the world is generated, so you will get different volcanoes every time you make a new world with that seed.