The last earthquake in Indonesia occurred on October 10 2023, shaking the Cianjur area, West Java. With a magnitude of 5.6, this earthquake attracted the attention of many parties, considering that Indonesia is a country located on the Pacific Ring of Fire, which is known for its high seismic activity. The epicenter of the earthquake was located at a depth of 10 kilometers, and the epicenter was about 12 kilometers east of the city of Cianjur. Residents felt vibrations for several seconds, which was enough to cause panic, especially in areas with less sturdy buildings. The impact of this earthquake caused damage to several houses, schools and public infrastructure, although there have been no official reports of casualties. The local Regional Disaster Management Agency (BPBD) team was immediately deployed to carry out emergency management and evaluate the impact of the earthquake. One of the main post-earthquake problems is the risk of aftershocks. As is known, Indonesia often experiences aftershocks after large earthquakes. Therefore, the public is advised to remain alert, especially residents who live in earthquake-prone areas. Knowledge and preparedness to deal with earthquakes is crucial. Evacuation and disaster preparedness training needs to be carried out regularly. This earthquake also sparked discussions about the resilience of buildings, especially in disaster-prone areas. Many houses in Cianjur were built without paying attention to earthquake construction standards. Therefore, it is important for the government and society to strengthen regulations in building earthquake-resistant infrastructure to reduce risks in the future. Relevant parties are also trying to disseminate information about the importance of earthquake detection tools for use by the public. Even though detection technology already exists, its use is still minimal in some remote areas. Education about how to behave when an earthquake occurs must also be improved so that residents are better prepared to face earthquakes that may occur in the future. Reports from the Earthquake and Tsunami Center indicate that this earthquake was part of tectonic activity in the subduction zone, where the Indo-Australian plate meets the Eurasian plate. This condition causes pressure that can trigger periodic earthquakes. Although medium-magnitude earthquakes like this do not always cause tsunamis, it is still important to have an early warning system. Communities around the affected areas are also reminded not to build in high-risk locations. Research shows that development in areas with potential for disasters can worsen the impact of earthquakes. A research-based approach is needed to guide disaster mitigation development and policies. Information infrastructure is also needed to report earthquake events to the wider community quickly. Official government websites and mobile applications are important for disseminating the latest information about earthquakes and disaster management recommendations to the public. Community involvement in disaster mitigation efforts must be strengthened through various social programs and activities. Continuing the study and research program on earthquake behavior in Indonesia can help in forecasting and mapping areas at risk. This can also increase the capacity of the government and society to face natural disasters in the future.
