e-ISSN: 2723-6692 ๐ฎ p-ISSN: 2723-6595
Jurnal Indonesia Sosial Sains, Vol. 4, No. 07, July 2023 642
material and the destruction of human civilization. Indonesia is a region that has geographical,
geological, hydrological, and demographic conditions that are prone to disasters and high
frequency. (Ramli, 2010).
This natural condition factor is exacerbated by the increasing population which is a trigger
factor for flooding indirectly. Human behavior that does not preserve forests by carrying out
uncontrolled logging can also cause increased and uncontrolled surface water flow resulting in
environmental damage in the area of one river basin. Floods that occur in the territory of
Indonesia every year are proven to leave an impact on human life and the environment,
especially in terms of casualties and material losses (Ministry of Social Affairs of the Republic of
Indonesia, 2008).
Based on data from the national disaster management agency (BNPB), in 2016 in Indonesia
there have been 2,406 disaster events resulting in 712 deaths and missing 3,164,247 victims
suffering and displacing (including injuries), 48,363 units of house damage, and 2,232 damage to
public facilities.
Earthquakes occurred in Indonesia in a span of two years, namely in 2017 and 2018. The
earthquake is related to the fact that Indonesia is an archipelagic country that includes many
volcanoes, faults, and meeting points between the Australian plate and the Asian basin along the
southern coastal areas of Indonesia to the western coastal areas of Indonesia (Mardiatno,
Malawani, Annisa, & Wacano, 2017).
Based on data in Central Sulawesi Province, there have been 6 tsunami disaster events. The
city of Palu is the capital of central Sulawesi province with geographical location located at
coordinates are 0.35-1.20 LU and 120-122.90 BT. Palu City is a five-dimensional city consisting
of valleys, oceans, rivers, mountains, and bays. Palu City is one of the provincial capitals in
Indonesia which is right on the equator. One of the many areas in the eastern part of Indonesia
that holds a large enough tsunami potential is the city of Palu and its surroundings. Based on data
in the city of Palu, three incidents were recorded around Palu bay, namely in 1927, 1968, and
1996 (Rudijanto, Putri, & Santoso, 2023).
The natural disaster that occurred in the city of Palu on September 28, 2018 shows the
pattern of government coordination as if helpless. During the tsunami disaster, most of the
stakeholders who had the authority to organize and organize assistance to disaster victims in
Palu "did not work" A small number of government officials became victims, while the surviving
officials were busy saving themselves and family members (Hidayati, 2008). Natural disasters
that occur in the city of Palu occur in three types of disasters, first is an earthquake, second is a
tsunami, and third is liquefaction. (Tajuddin, 2021).
A tectonic earthquake has occurred in Donggala regency, Central Sulawesi on Friday,
September 28, 2018, at 17.02.44 WITA with M 7.7 location 0.18 LS and 119.85 BT and a distance
of 26 km from the north of Donggala Central Sulawesi, with a depth of 10 km. Small tremors
occurred throughout the day, but the 7.4 quake on the Richter BderDirect scale when the Palu
Koro fault, which crosses the city of Palu, shifted about 10 km below ground level. Since then,
there have been at least 500 aftershocks in Palu, most of which were not felt by residents (Wekke
et al, 2019)
Looking at the geographical position of the city of Palu which is on an active fault in Sulawesi,
namely the Palu koro fault which extends approximately 240 km from north (Palu city) to south
(malili) to Bone bay. This fault is an active sistral fault with a shift speed of about 25-30 mm/year
(pakpahan ddk, 2015). Therefore, it takes a functional unit that is expert in understanding related
to the characteristics of the source. Thus facilitating the process of assessing disaster potential
and reducing the impact of disasters that may be caused and reducing the impact of disasters on
life around and public facilities around the location. (Hanafi, 2008)
One of the policies governing disaster management is Law No. 24 of 2007 concerning Disaster