On 13 December 2014, a landslide in Banjarnegara, Central Java, Indonesia, killing 93 with 23 people missing.
As the result of the tragedy, the Indonesian government began inspecting all regencies and district on high-risk area, particularly Banjarnegara itself.
This condition was later worsened with heavy rains in the area, increasing the risk of flash floods and even could drown the remaining survivors.
Volunteers began conducting some research and safe steps to the remaining residents on the "high-risk area".
They were also putting some "landslides early warning systems" to prevent similar tragedy to be occurred.