Tsunami-induced coastal change : scenario studies for Painan, West Sumatra, Indonesia
There exists a high probability of a great earthquake rupture along the subduction megathrust under the Mentawai Islands of West Sumatra in the near future. Six rupture models were used to assess the tsunami inundation and the accompanying sediment movement in Painan, West Sumatra, Indonesia. Accord...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/98007 http://hdl.handle.net/10220/13240 |
| _version_ | 1826111160887279616 |
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| author | Li, Linlin Huang, Zhenhua Qiu, Qiang Natawidjaja, Danny H. Sieh, Kerry |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Li, Linlin Huang, Zhenhua Qiu, Qiang Natawidjaja, Danny H. Sieh, Kerry |
| author_sort | Li, Linlin |
| collection | NTU |
| description | There exists a high probability of a great earthquake rupture along the subduction megathrust under the Mentawai Islands of West Sumatra in the near future. Six rupture models were used to assess the tsunami inundation and the accompanying sediment movement in Painan, West Sumatra, Indonesia. According to a worst scenario, the potential tsunami might hit the coast of Painan about 26 minutes after the rupture and the entire city could be inundated with a maximum inundation depth of about 7 m. Severe erosion may also occur in the near-shore region. Two scenarios, one scenario with a positive leading wave and the other with a negative leading wave, were selected to simulate the tsunami-induced morphological changes. A positive leading wave would cause severe erosion in the shoreline area and a large sandbar in the offshore area adjacent to the shoreline; a small amount of sediment could be deposited in the city area; a negative leading wave could cause moderate erosion in the further offshore area due to the strong retreating wave front, an offshore sandbar could form in the bay area, while no noticeable large area of sand deposit could be found in the city area. The difference in the erosion and deposition patterns between these two scenarios provides very helpful information in the investigation of historical tsunamis through tsunami deposits. |
| first_indexed | 2024-10-01T02:46:07Z |
| format | Journal Article |
| id | ntu-10356/98007 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:46:07Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/980072020-09-26T21:25:19Z Tsunami-induced coastal change : scenario studies for Painan, West Sumatra, Indonesia Li, Linlin Huang, Zhenhua Qiu, Qiang Natawidjaja, Danny H. Sieh, Kerry School of Civil and Environmental Engineering Earth Observatory of Singapore There exists a high probability of a great earthquake rupture along the subduction megathrust under the Mentawai Islands of West Sumatra in the near future. Six rupture models were used to assess the tsunami inundation and the accompanying sediment movement in Painan, West Sumatra, Indonesia. According to a worst scenario, the potential tsunami might hit the coast of Painan about 26 minutes after the rupture and the entire city could be inundated with a maximum inundation depth of about 7 m. Severe erosion may also occur in the near-shore region. Two scenarios, one scenario with a positive leading wave and the other with a negative leading wave, were selected to simulate the tsunami-induced morphological changes. A positive leading wave would cause severe erosion in the shoreline area and a large sandbar in the offshore area adjacent to the shoreline; a small amount of sediment could be deposited in the city area; a negative leading wave could cause moderate erosion in the further offshore area due to the strong retreating wave front, an offshore sandbar could form in the bay area, while no noticeable large area of sand deposit could be found in the city area. The difference in the erosion and deposition patterns between these two scenarios provides very helpful information in the investigation of historical tsunamis through tsunami deposits. Published version 2013-08-27T04:33:54Z 2019-12-06T19:49:22Z 2013-08-27T04:33:54Z 2019-12-06T19:49:22Z 2012 2012 Journal Article Li, L., Huang, Z., Qiu, Q., Natawidjaja, D. H., & Sieh, K. (2012). Tsunami-induced coastal change: scenario studies for Painan, West Sumatra, Indonesia. Earth, Planets and Space, 64(10), 799-816. https://hdl.handle.net/10356/98007 http://hdl.handle.net/10220/13240 10.5047/eps.2011.08.002 en Earth, planets and space © 2012 The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS). This paper was published in Earth, planets and space and is made available as an electronic reprint (preprint) with permission of SGEPSS. The paper can be found at the following official DOI: [http://dx.doi.org/10.5047/eps.2011.08.002]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | Li, Linlin Huang, Zhenhua Qiu, Qiang Natawidjaja, Danny H. Sieh, Kerry Tsunami-induced coastal change : scenario studies for Painan, West Sumatra, Indonesia |
| title | Tsunami-induced coastal change : scenario studies for Painan, West Sumatra, Indonesia |
| title_full | Tsunami-induced coastal change : scenario studies for Painan, West Sumatra, Indonesia |
| title_fullStr | Tsunami-induced coastal change : scenario studies for Painan, West Sumatra, Indonesia |
| title_full_unstemmed | Tsunami-induced coastal change : scenario studies for Painan, West Sumatra, Indonesia |
| title_short | Tsunami-induced coastal change : scenario studies for Painan, West Sumatra, Indonesia |
| title_sort | tsunami induced coastal change scenario studies for painan west sumatra indonesia |
| url | https://hdl.handle.net/10356/98007 http://hdl.handle.net/10220/13240 |
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