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The traditional homes of indigenous communities in Indonesia are highly vulnerable to natural disasters, particularly earthquakes, due to Indonesia's location in the Pacific Ring of Fire, which experiences high seismic activity. This situation demands the strengthening of traditional buildings to withstand potential earthquakes. Stilt houses, as a form of traditional architecture, possess characteristics that actually support earthquake resilience, such as flexible structures, the use of lightweight materials, and the application of local wisdom passed down through generations. With the development of modern construction techniques, stilt houses have the potential to become safer and more adaptable dwellings to earthquake shocks. However, indigenous communities, particularly those living in earthquake-prone areas and with lower levels of education, often face limited knowledge and skills related to the basic principles of earthquake-resistant construction. This lack of understanding results in traditional house construction without considering structural safety aspects, ultimately increasing the risk of serious damage and even collapse during an earthquake. These impacts not only threaten life but also cause significant material losses. This community service activity aims to improve the preparedness and resilience of the Sentani Indigenous community by developing earthquake-resistant stilt house models, increasing knowledge and skills in earthquake-safe house construction and maintenance, and encouraging the use of innovative technology and materials. The expected outcomes are the creation of model houses that can serve as examples and the dissemination of information on earthquake-resistant construction technology.

Indonesia is prone to natural disasters because it is located at the confluence of three active tectonic plates. This condition causes high earthquake, volcano, and tsunami activity in Indonesia. Mount Kelud is the most active volcano in Indonesia with cycles that recur every 8 to 15 years. The community service method carried out is to collect data on the area, population, targets, capacity, vulnerability level, and empirical data on the 2014 eruption of Mount Kelud. Then conduct analysis, calculate estimates of health logistics needs, especially reproductive health, socialize the results of the analysis, and conduct disaster preparedness education. This activity was carried out for 6 weeks from March 12 to April 21, 2025. Based on the results of the risk assessment, the Ngancar District, Kediri Regency area has a score of frequent risk scale, severe impact scale, and priority and impact scale in the high category. To overcome the health crisis, a contingency plan is needed, especially for the reproductive health sub-cluster, which includes the preparedness of target data, existing capacity in the region, the level of vulnerability, and the estimated amount of health logistics needed to anticipate the eruption of Mount Kelud. Mount Kelud has a periodic eruption pattern in 8 to 15 years. The contingency plan for dealing with the health crisis of the eruption of Mount Kelud is very important for health service stakeholders because it can minimize the adverse impacts caused, increase rapid response, and ensure smooth coordination between related institutions in dealing with the natural disaster effectively and efficiently. It also supports disaster risk reduction efforts at the community level and strengthens the resilience of local communities.

Illegal logging is one of the leading causes of environmental degradation, triggering natural disasters such as floods, landslides, and droughts. Children of Generation Alpha, who are still in the cognitive development stage, are considered vulnerable due to their limited understanding and preparedness for such disasters. This community service program aimed to enhance elementary school students’ awareness and knowledge of disaster mitigation through educational media in the form of printed comics. The activity was conducted by the KKN Team of Universitas Ivet Semarang at SDN Plalangan 02, involving 24 students from grades 3 and 4. The procedure consisted of preliminary observation to assess school needs, comic development on the theme of illegal logging-related disaster mitigation, delivery of the material through comic reading sessions, interactive discussions, and evaluation through pretest and posttest. The pretest results showed that most students were in the "moderate" knowledge category (45.8%). After the intervention, 75% of students reached the "good" category. The Wilcoxon test yielded a significance value of p = 0.001 (p < 0.05), indicating a statistically significant difference in students’ knowledge before and after the intervention. Printed comics proved effective in conveying complex disaster mitigation content in a visually engaging and narrative-driven format. The approach aligns with the characteristics of Generation Alpha, who are highly responsive to visual media. It is recommended that printed comics be further developed and integrated into disaster education programs in elementary schools, especially those located in disaster prone areas.

Disaster mitigation is an effort to reduce casualties and provide a proper and good understanding to the public regarding natural disasters. This activity aims to provide early insight and knowledge regarding natural disasters. The method of implementing this community service uses the socialization method with Rutong State Elementary School students as participants. This socialization material focuses on mitigating the tsunami and earthquake disasters, a major threat to Rutong Village, located in a coastal area.

Geographically, the archipelago Indonesia is located on the Ring of Fire which is the meeting point of many tectonic plates. This condition causes Indonesia to be prone to earthquakes. The West Java Cianjur earthquake in November 2022 was a 5.6 MW earthquake with a depth of 10 km, which was caused by the movement of the Cugenang fault. Ciherang Village in the Pacet sub-district, Cianjur is one of the villages affected by the Cianjur earthquake. Victims of natural disasters are physically, psychologically and socially faced with very complex situations and circumstances. These problems cause stress for all residents and can cause hypertension. The purpose of this Community Service activity is to help ease the mental burden of Ciherang villagers who were affected by the earthquake. It is hoped that through this blood pressure measurement activity, the hypertension status of residents can be known. The results of blood pressure measurements showed that 9.7% had high blood pressure (130-139/85-89 mmHg) and 37.1% of residents had hypertension (≥140/90 mmHg).