Situation Analysis in the Preparation of Contingency Plans on Landslide in Sukoharjo Regency, Central Java Siti Azizah Susilawati (a*), Nanda Khoirunisa (b), Ivan Budi Setiawan (a), Rahmah Afifah (a), Dwi Azisyarlina (b)
a) Department Geography Education, Faculty of Education, Muhammadiyah Surakarta University
Jalan Garuda Mas No.2, Pabelan, Kartasura, Sukoharjo Regency, Central Java 57169, Indonesia
*azizah.susilawati[at]ums.ac.id
b) Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University
Jalan Barong Tongkok, Samarinda City, East Kalimantan 75242, Indonesia
Abstract
As part of disaster risk management, contingency plan as a mitigation effort is in the form of a document in an emergency response plan. A contingency plan is a systematic plan for dealing with disaster emergencies and preparedness situations, for example, landslides. From 2003 to 2021, there have been 9 landslides and a total of 203 injuries in Sukoharjo Regency, where Bulu and Weru Districts have a high threat of landslides. Threat scenarios are created based on reasonable estimates of the worst threat event or the most likely event scenario. Event scenarios include aspects of location, trigger, primary hazard, early warning, affected area coverage, secondary hazard, and derivative hazard. Landslide hazard characteristics are assessed based on topography, geology, and past disaster history. The results of the threat impact scenario include: a) the population aspect in the villages of Kedungsono, Gentan, Kemal, Sanggang, Tiyaran, and Tawang, assuming that the exposed population is 18,604 people, of whom 3,487 are vulnerable groups- b) it is estimated that the physical aspects of the affected facilities and infrastructure are residential areas, schools, health centers, and village offices- c) the affected economic sectors, in the form of losses in the fields of trade, services, tourism, retail, industry, transportation, agriculture, plantations, and fisheries, disrupt people^s livelihoods with a total physical loss approximating IDR33,549,590,784,957 or -2,145,725,004- and d) affected environmental aspects with the assumption scenario in the form of light to severe damage to the soil or land, air, and forest conditions.
