Korean Society of Hazard Mitigation

As climate change has accelerated in recent years, the risk of compound disasters, in which multiple hazards are spatially and temporally interconnected and cause simultaneous or cascading impacts, has increased. As the occurrence of compound disasters has rapidly increased worldwide, research on them has been actively conducted at the global scale. However, as of 2025, studies on compound disast…

As the frequency and severity of wildfires continue to increase worldwide, the need for rapid and reliable wildfire detection and prediction technologies has become increasingly crucial. In this study, satellite data were utilized to predict wildfire occurrences, and the predictive performances of logistic regression and artificial neural network models were compared and analyzed. Land surface te…

This study developed a three-dimensional numerical model of an actual subway station using PyroSim and evaluated smoke movement and life safety during fire scenarios through Fire Dynamics Simulator (FDS) simulations. A mesh sensitivity analysis was conducted to determine the appropriate mesh resolution, and the effects of smoke and ventilation system operation on smoke spread and life safety crit…

Small-scale lithium-ion batteries are widely used as the primary power source for portable electronic devices, such as smartphones, laptops, and wearable electronics, and their application scope continues to expand. However, owing to their structural characteristics, fire incidents involving these batteries often exhibit thermal runaway accompanied by sudden flame jetting, fragmentation, and re-i…

Derailment, one of the most critical accidents in railway systems, is directly associated with running safety. The derailment coefficient, which is widely used as a representative quantitative indicator for derailment evaluation, is determined by the interaction between the vehicle and track and is closely related to track conditions. Previous studies have investigated the effects of operational …

This study investigates the characteristics and causes of fire and explosion accidents involving flammable substances and proposes preventive measures. A total of 537 chemical accidents that occurred in Korea between 2019 and 2024 were examined, focusing on the accident types, human casualties, and operational stages. Although fire and explosion incidents accounted for only 15.64% of the total nu…

This study analyzed the effectiveness of community-based safety mapping activities in improving students' safety awareness. A survey was conducted with 225 elementary, middle, and high school students from 16 schools nationwide who participated in a safety mapping program. Changes in safety awareness before and after the activity were measured using paired-sample t-tests and reliability analysis.…

Jakarta, a rapidly urbanizing coastal city, faces increasing flood risks because of climate change. Many studies have analyzed the city’s flood risk, but they have mostly relied on surveys or aggregated data, limiting the assessment of persistent flood risks at finer spatial scales. This study develops a Flood Risk Index (FRI) to assess and predict flood risks in Jakarta, a highly flood-prone cit…

This study assessed heatwave vulnerability in Seoul, South Korea, by integrating heat hazards, social vulnerability, and accessibility to cooling shelters. Heat hazard zones were identified using thermal distribution maps and climate data, whereas cooling shelter service blind spots were delineated using pedestrian network analysis. All analyses were conducted at a 100 m grid resolution and integ…

In this study, we develop a Python-based simulation code for crack growth due to hydrogen embrittlement. A multiphysics numerical model combining stress-assisted hydrogen diffusion, trapping effects, and Paris’ law-based crack propagation is systematically verified for numerical stability and physical plausibility. Specifically, (1) implementation and verification of a stress-driven hydrogen diff…

To analyze the effects of stand density on wildfire spread, physics-based simulations of a flat pine forest were performed while varying tree stand spacing and wind speed. The results from the crown fire transition and subsequent spread stages were collected and analyzed through visual analysis and a comparison of the wildfire spread rates. Overall, strong flame behavior was observed during the t…

The accurate prediction of water surface displacement caused by submarine landslides is essential for effective coastal disaster prevention. This study presents a simplified analytical method for calculating water surface displacement resulting from submarine landslides, offering an alternative to complex existing approaches. Utilizing linear wave theory, the initial surface displacement for a sc…

Climate change has increased the frequency and intensity of climate hazards, increasing the importance of monitoring systems for disaster response. Existing climate-monitoring platforms rely on manual database query approaches, which make real-time failure detection difficult. This study proposes a system architecture in which data-collection adapters expose status metrics in a standardized forma…

This study evaluates the applicability of a real-time flood forecasting system developed using K-water’s K-series integrated modeling framework, which couples rainfall-runoff simulation, reservoir operation, river hydraulics, and flood inundation analysis. The system was applied to the extreme flood event that occurred in the Seomjin River Basin, South Korea, in August 2020. Catchment runoff was …

The effect of ignition location on the heat release characteristics of solid combustibles was experimentally investigated in this study. Fire experiments were conducted by using cubic polyurethane foam blocks and varying the ignition location and combustible size. Heat release rate (HRR) measurements were performed to determine the fire growth rate and average maximum HRR. The evolution of burnin…

The behavior of particles was investigated in SBR and A2O systems, which are representative wastewater treatment methods. The SBR reactor was designed with a capacity of 8 L, the influent flow rate was 12 L/day, and the operating cycle was set to 4.0 hr/cycle. The influent characteristics were as follows: MLSS 1,700 mg/L, TOC 78.8 mg/L, SS 180.0 mg/L, T-N 44.394 mg/L, and T-P 4.666 mg/L. Particle…

Owing to climate change, annual rainfall and the likelihood of extreme precipitation events are projected to increase in the future (2021-2100), raising concerns about the intensification of flood damage. This study assessed flood risk at the administrative district level using three key components—Hazard, Exposure, and Vulnerability—and 13 detailed indicators that reflect meteorological factors,…

Although rack systems in logistics facilities provide high storage efficiency, they are inherently vulnerable to heat transfer and fire spread during fire incidents. Despite extensive research into rack fire behavior, most studies relied on numerical analyses because of the diversity of rack configurations and high cost of full-scale fire experiments. Consequently, there has been a lack of experi…

With the recent growth in coastal development, dredged clay has been increasingly used as a core reclamation material. However, marine clay may exhibit a consolidation behavior distinct from that of terrestrial clay owing to pore water salinity. In particular, salinity variations induced by environmental factors such as groundwater level fluctuations or seawater leaching can alter the compressibi…

This study defines resilience as the relative influence on the recovery of urban systems during the post-disaster recovery process and analyzes the importance of critical infrastructure. Based on the 4R resilience framework (robustness, redundancy, resourcefulness, and rapidity), the Analytic Network Process (ANP) was employed to consider the interdependencies among infrastructure systems. The re…