The Palu earthquake and tsunami in central Sulawesi, Indonesia occurred nearly two months ago but much of the area is still devastated.

Footage of the area filmed on December 14 shows the current condition, with houses, trees and objects moved around 2km from their original position.

This phenomenon is known as liquefaction and usually occurs because there is water or mud beneath the ground that is pressed by harder soil shifted during an earthquake.

This can be seen in the earthquake-wracked areas of Jonoge, Balaroa, Petobo and Balaya, where according to the filmer: "The land [looks] like it was covered by a giant plow. The surface becomes irregularly jagged. It changed the whole landscape."

The destruction is still so extensive that establishing land limits is impossible since all signs were destroyed by the liquefaction, meaning that GPS must be used to redefine the correct boundaries.

the Palu earthquake in central Sulawesi just passed. the victims had been buried in their place.
now we can see what happened. the house moved. the trees shifted too, far from their original position. all move 2 km from their original position.
   this event is known as liquefaction. usually occurs because there is water or mud beneath the ground.
when an earthquake occurs mud or water brings harder soil to shift. this can be seen in the areas of jonoge, balaroa, petobo and balaya.
   land like a plow by a giant plow. the surface becomes irregularly jagged. change the whole landscape.
no more rice fields, no more villages, all destroyed.
no more land borders, all signs on the border change and disappear. in the future the land border must be determined by GPS. whatever happens to the land of the coordinate point will never be lost or changed.