Indonesia located among 3 major plates and in the path of Mediterranean Fault and Pacific Fault which make it prone to earthquake. An earthquake can cause other disasters such as the liquefaction that hit Central Sulawesi in 2018. For Yogyakarta, such potential risk is also found in the Opak Fault area that stretches from Parangtritis to Prambanan.
This potential disaster has made three UNY Geography Education students mapped out an evacuation route in order to mitigate the liquefaction disaster in the Opak Fault area. This mapping is a Student Creativity Program implemented by EtikaCahyani, WahyuNurAfrita, and AnnisaEkaNurulAza.
"Previously, in 2009 there were studies that proved the potential of liquefaction in the Patalan and Pundong areas, Bantul. We are also interested in carrying out further research and mapping of evacuation routes with exploration methods, field data analysis and Geographic Information System (GIS) analysis, "EtikaCahyani said.
Etika explained that GIS is a system that obtains, integrates, manipulates, analyzes, and displays data that spatially references the condition of the earth. Etika and her team used GIS to map the evacuation route by mapping spatial network evacuation analysis.
From the results of the mapping, the direction of movement of the liquefaction is south so that the evacuation route is directed to the north and west. The Bambanglipuro and Bantul areas are potential places for refugee camps. In Bantul itself there are PanembahanSenopati Hospital and PKU Muhammadiyah Hospital which can be a place for treatment of liquefaction victims.
"The map from this study can be used by the public to mitigate the faction disaster. Hopefully, people are well inform about this map. It will prevent any possible confusion and panic whenever the disaster happened,"Etikaconcluded. (Muhammad Abdul Hadi / JK;TJ.Lak)