Papua New Guinea was a country in Oceania, It's Capital is Port Moresby.
During the 2012 apocalypse, Papua New Guinea was hit by massive earthquakes, destroying various cities and killing several people living in the country. Volcanoes engulfed several areas across the country and rained ash everywhere. The remains of the ruined Papua New Guinea were swept by a megatsunami at the height of 1500 meters during Worldwide Flooding.
As a result of the disasters from the apocalypse, Papua New Guinea is left extreme damage and is submerged underwater. When time was reset to year one, the country presumably risen from the seawaters when the global floodwaters started to recede.