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http://dx.doi.org/10.15683/kosdi.2020.09.30.440

Analysis of the Occurrence Characteristic of Earthquake-Induced Landslide through a Media Report : Focus on International Cases Reported in Domestic Media During the 10 years (2009-2018)  

Kang, Minjeng (Division of Forest Disaster Management, National Institute of Forest Science)
Kim, Kidae (Division of Forest Disaster Management, National Institute of Forest Science)
Seo, Junpyo (Division of Forest Disaster Management, National Institute of Forest Science)
Woo, Choongshik (Division of Forest Disaster Management, National Institute of Forest Science)
Lee, Changwoo (Division of Forest Disaster Management, National Institute of Forest Science)
Publication Information
Journal of the Society of Disaster Information / v.16, no.3, 2020 , pp. 440-448 More about this Journal
Abstract
Purpose: Most of the studies in the country on earthquake-induced landslide predict the displacement of the slope. Until now, no studies have been conducted on the occurrence of landslides and damage characteristics by earthquakes. Therefore, this study was conducted to obtain basic data of landslides caused by earthquakes. Method: In order to analyze the characteristics of earthquake-causing landslides, we have collected data reported in the media over the past decade. Landslides in foreign countries were analyzed separately by cause of occurrences such as rainfall and earthquake. Landslides from abroad were analyzed according to the cause of the occurrence, and landslides caused by earthquakes were further analyzed as follows: the magnitude of an earthquake, year of occurrence, number of occurrences by continent, damage status, etc. Result: In the past 10 years, a total of 608 landslides have been reported from overseas, and the cause is the highest with 340 landslides due to rainfall. There were 70 cases of landslides caused by earthquakes, and it was analyzed as the second cause of landslides. The average magnitude for earthquakes that caused landslides was 6.5, and the minimum and maximum magnitude were 4.4 and 8.2 respectively. The earthquake-induced landslides were the most occurrence in 2011yr and 2012yr, and the continent was the most common in Asia. Also, It was analyzed that if an earthquake caused landslides, the number of casualties increased and the size of the damage increased. Conclusion: Currently, earthquakes are steadily increasing in Korea, and the possibility of strong earthquakes is also increasing. Earthquake-induced landslides are beyond human control due to natural disasters but can minimize damage through active prevention and response. It is expected that the results of this study will be used as basic data in establishing measures for earthquake landslides to reduce property and human damage in the future.
Keywords
Earthquake; Landslide; Earthquake-induced Landslide; Media Report; Occurrence Characteristic;
Citations & Related Records
Times Cited By KSCI : 9  (Citation Analysis)
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