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Shrawan Danda is a hill in the North-eastern part of Butwal city in Nepal. The hill is settled by about 10,000 residents. Geologically, the hill lies in the Siwalik region.[1] The stability of the hill has been questioned by several researchers, however, the settlement has not been moved. The unstable zone of Shrawan Danda vulnerable to landslide has an area of about 1.5 sq. km. The altitude of the landslide zone from 200 to 750m and is covered by thin vegetation. There are several tension cracks on the crown.[1] The zone is considered highly risky against earthquake due to presence of Main Frontal Thrust and Main Boundary Thrust in the immediate vicinity.[2]


1998 landslide


The torrential rainfall on mid August 1998, triggered a landslide on 29 August and 5 September 1998.[3] One person was killed in the landslide and five people were injured in the Jyotinagar and Laxminagar area. In total about 60 houses were damaged. The loss in infrastructure was calculated to be about NPR 58 millions.[4][5][6]


2021 landslide


View of landslide from Tinau River
View of landslide from Tinau River

In August 2021 morning, landslide was triggered due to rainfall. About 11 houses were damaged by the landslide after it hit the settlement.[7][8][9]


References


  1. Gyawali, Bishnu Prasad; Miyagi, Toyohiko (2005). "Preliminary study of landslide risk evaluation by micro landform interpretation on southern slope of Siwalik Hills, Nepal, using aerial photo interpretation Acase study of Shrawan danda landslide Butwal, Rupandehi, Nepal". Journal of the Japan Landslide Society. 42 (2): 146–158. doi:10.3313/jls.42.2_146.
  2. Kaphle, Krishna P; Rimal, LN; Duwadi, AK; Piya, B; Nepali, D (2008). "Disasters and environmental degradation in Nepal: focus on urban areas". Journal of Nepal Geological Society. 38: 61–68. doi:10.3126/jngs.v38i0.31482. ISSN 2676-1378.
  3. MIYAGI, Toyohiko; PRASAD, Gyawali B; TANAVUD, Charlchai; POTICHAN, Aniruth; HAMASAKI, Eisaku (2004). "Landslide Risk Evaluation and Mapping". {{cite journal}}: Cite journal requires |journal= (help)
  4. Gyawali, BP (2003). "Shrawan danda landslide in Butwal Rupandehi District, Nepal and its risk assessment". Journal of the Japan Landslide Society. 40 (2): 47–50. doi:10.3313/jls.40.151.
  5. 発武, 汪; 浩, 福岡 (2003). "流動性地すべりに関する国際会議 (ic-Fsm2003, Iw-Flows 2003) の報告". 日本地すべり学会誌. 40 (2): 154–156. doi:10.3313/jls.40.154.
  6. Setopati, भीष्मराज ओझा र निरा गौतम. "पहिरोले छियाछिया चुरे, जोखिममा बुटवल सहर". Setopati. Retrieved 7 November 2021.
  7. Bhusal, Rekha. "Landslide destroys houses in Butwal". My Republica. Retrieved 30 August 2021.
  8. Butwaltoday. "बुटवलको ज्योतीनगरमा २३ बर्षपछि फेरि खस्योे पहिरो, दर्जन घर प्रभावित". newsbutwaltoday.com. Retrieved 30 August 2021.
  9. "Floods, landslides continue to wreak havoc". Retrieved 8 December 2021.



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