Highly populated area: The earthquake struck West Java, a densely populated province in Indonesia with over 48 million people. The location of the epicenter, close to several urban centers, meant that a large number of people were exposed to the strongest shaking.
Weak building structures: Many buildings in the affected areas were not designed or constructed to withstand earthquakes. Poor building codes, inadequate enforcement, and the use of substandard materials contributed to the vulnerability of structures.
Lack of earthquake preparedness: Indonesia is located in a seismically active region and has experienced several major earthquakes in the past. However, many communities lack adequate earthquake preparedness measures. Public education, emergency planning, and regular drills are often insufficient.
Geographic factors: The topography and geological conditions in West Java amplified the effects of the earthquake. The region has hills and valleys that can focus seismic waves, leading to stronger ground shaking. Additionally, the presence of soft soil and unstable slopes made the area more susceptible to liquefaction and landslides.
Strong ground shaking: The earthquake generated strong ground shaking, with peak accelerations reaching up to 0.5 g (where g is the acceleration due to gravity). Such high accelerations can cause severe damage to buildings and infrastructure, even those located some distance from the epicenter.
Multiple casualties and injuries: The shallow depth, strong shaking, and vulnerability of buildings led to widespread destruction. Many structures collapsed or were severely damaged, resulting in numerous casualties and injuries.
Limited capacity for emergency response: The sudden and widespread nature of the disaster overwhelmed local emergency response capabilities. Insufficient resources, lack of coordination, and challenges in reaching remote areas hindered timely and effective救援 efforts.
