The common assumption that collective memory is preserved in the form of local knowledge, especially in relation to community's survival, is not always proven. My research with a BRIN team on the islands of Ambon and Haruku in September 2024 discovered that most of the communities on these islands have lost their memory about how to save themselves from earthquakes and tsunamis, which have occurred several times since the 1600s, and the last time took place in 2019. However, based on the memory of the recent disasters, the Ambonese communities produced new knowledge that is socialized to their members using contemporary means, such as pop songs and children's books. In addition, the architectural knowledge of building an earthquake-proof house is still part of the living culture, although this too is gradually being abandoned due to the higher cost of material and the decreasing number of the local builders who master the traditional knowledge.