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Erosion is a serious problem in riverbank areas. This is because erosion is the starting point for subsequent natural disasters such as landslides. Based on this understanding, empowerment is needed by installing an Early Warning System, mapping of vulnerable areas and evacuation routes, as well as outreach aimed at increasing the understanding and awareness of residents for mitigation. The early warning system socialization program is carried out with Focus Group Discussions so that it can run interactively. Thus, it is hoped that there will be an increase in public understanding and awareness of natural disasters, as well as an increase in the quality of community empowerment by students in the implementation of applied science.

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.

This study aimed to analyze the differences in the Project Based Learning (PJBL) and Problem-Based Learning (PBL) learning models at MA PPPI Miftahussalam Banyumas on disaster mitigation material. The type of research used in this study was quasi-experimental, with research subjects namely students of class XI MA PPPI Miftahussalam Banyumas, totaling 52 students. This data collection method uses the computational computation of the SPSS program. Data processing for comparison of Project Based Learning and Problem-Based Learning models uses the t-test. The results of the t-test show the value of Sig. (2-tailed) of 0.028 <0.05, it can be concluded that there is a significant difference between the average student learning outcomes with the Project Based Learning and Problem-Based Learning models. The mean difference value is -5.44 which indicates the difference between the average student learning outcomes with the Problem-Based Learning model and the Project Based Learning model or 77.56 – 83 = -5.44. It can be concluded that learning using the Project Based Learning learning model is significantly more effective than using the Problem-Based Learning model.

Flooding is a problem that still requires special attention from a number of parties, including the community and the government. Flooding is not a light matter. Flooding can occur due to rising water levels due to above-average rainfall, temperature changes, levees or dams bursting, or obstruction of water flow elsewhere. The lack of community management and preparedness for disasters is one of the causes of the high impact of post-disaster damage or loss, so disaster mitigation is needed as an effort to reduce disaster risk. The research aims to analyze public knowledge about flood mitigation and preparedness. This study used qualitative research methods with the sampling technique used was simple random sampling. It was found that among several questions in the interview that the author asked about flood management knowledge and preparedness in flood disaster mitigation, all informants responded and acted very well. From the research conducted, all informants expect attention from the government to make improvements to the drainage system again and make new drainage. And the author hopes that the arrangement of residential areas on the banks of the river will be carried out to overcome floods that often hit the Kampung Baru area, Medan Maimun District.  

Efforts in disaster risk reduction have not been carried out optimally. In this case, the socialization of disaster risk reduction in Dusun II Kalukau, West Sibalaya Village is one of the efforts to provide direct education informally to the community. This study aims to produce information about public understanding and awareness of disaster risk reduction. This research was conducted with a qualitative approach. Data sources come from observation, discuccion focus groups, and active participation. The results showed that public understanding of disasters was relatively good, the implementation of disaster risk reduction socialization was considered good as an educational effort for disaster mitigation.

Some areas in Indonesia are earthquake-prone areas, one of which is the Banda arc. The Banda arc has a complete tectonic system and is also an area with a high level of seismicity. One of the earthquake disaster mitigation efforts is by analyzing the a-values and b-values which are seismotectonic parameters. The a-values and b-values can be analyzed through the Gutenberg-Ritchter equation through the frequency-magnitude distribution. The gradient of the frequency-magnitude distribution is the b-value which is a stress distribution constant which indicates the level of fragility of the rocks in the area, while the a-value indicates seismic activity which is the seismicity constant. In determining the a-value and b-value depends on the Magnitude completeness (Mc). This study uses earthquake data from the USGS catalog from 2015–2020 and then uniformizes the magnitude to magnitude moment (Mw), declusters the earthquake catalog to eliminate the effects of foreshocks and aftershock to obtain the main earthquake data through ZMAP 6.0 software. After that, do a magnitude-frequency distribution plot to determine the completeness of the data in order to obtain the completeness of magnitude (Mc) which can be used to determine the a-value and b-value using ZMAP 6.0 software. The result of this research is the value of Magnitude Completeness (Mc) is 4.5, while the a-value is 9,07 and the b-value is 1,33. For the spatial variation of a-values and b-values, there are areas with a low a-value of 7 and a low b-value of 1,2 which have a chance of a large earthquake in the future due to the accumulation of energy that causes a high level of stress in the area.