Karst collapse in Borneo

A large sinkhole collapse in Sarawak, on the Malaysian island of Borneo, almost led to the loss of c.100 lives. A traditional longhouse, occupied by around 100 people, was quickly evacuated after a man, taking a late night trip to the toilet, raised the alarm when he felt the earth move beneath him and saw the end of the longhouse sinking into the ground.

For further information on the geology and karst landforms of the Sarawak region, visit http://www.oucc.org.uk/procs/proc11/borneo_karst.htm.

For further information on sinkholes, how they develop and why they collapse, visit http://www.dyetracing.com/karst/karst.html.