Historical landslide events in Malaysia 1993-2019

Abstract

Background: To review historical landslide events in Malaysia. The increasing number of landslides in Malaysia is closely linked to the development of new infrastructures of economic and social progress. Methods: The research was a review study utilizing secondary data as the primary source from National Slope Master Plan 2009-2023 and some additional study by the researchers. This study thoroughly examined landslide in Malaysia and found many landslides that occurred in the area of Selangor due to increased development. There are several historical landslide events in Malaysia that have been extensively reviewed from the year 1993 to the year 2019. Findings: This disaster has resulted in substantial numbers of casualties, destruction of property losses, and direct and indirect economic implications. The summary of this study found that the number of landslides and injuries were reported to increase between 1993 and 2019. Some major landslides also occurred along the main highway without fatalities but serious traffic congestion occurred. Novelty of the study: This paper focus on clarify the historical events that had an impact on the physical and socio-economic conditions in Malaysia. In summary, this study has highlighted the summary of major landslide events in Selangor and Kuala Lumpur, and generally, this tragedy occurred causes of slope instability and human error. Recommendations: It is suggested to further restrict any development on a high land area to limit environmental impact. In addition, awareness and knowledge about the dangers of landslides should be communicated to the public during the planning and management process. Susceptibility analyses may also provide important input during overall design, analysis, and planning of development in hilly terrain. Keywords: Landslide; historical; Malayasia; hazard