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DOI | 10.1029/2019GL082717 |
Source Model for the Tsunami Inside Palu Bay Following the 2018 Palu Earthquake, Indonesia | |
Gusman, Aditya Riadi1; Supendi, Pepen2,3; Nugraha, Andri Dian4; Power, William1; Latief, Hamzah5,6; Sunendar, Haris5; Widiyantoro, Sri4; Daryono3; Wiyono, Samsul Hadi3; Hakim, Aradea7; Muhari, Abdul8; Wang, Xiaoming1; Burbidge, David1; Palgunadi, Kadek9; Hamling, Ian1; Daryono, Mudrik Rahmawan10 | |
2019-08-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:15页码:8721-8730 |
文章类型 | Article |
语种 | 英语 |
国家 | New Zealand; Indonesia; Saudi Arabia |
英文摘要 | On 28 September 2018, a strike-slip earthquake occurred in Palu, Indonesia, and was followed by a series of tsunami waves that devastated the coast of Palu Bay. The tsunami was recorded at the Pantoloan tide gauge station with a peak amplitude of similar to 2 m above the water level and struck at high tide. We use the Pantoloan tsunami waveform and synthetic aperture rada displacement data in a joint inversion to estimate the vertical displacement around the narrow bay. Our inversion result suggests that the middle of the bay was uplifted up to 0.8 m, while the other parts of the bay subsided by up to 1 m. However, this seafloor displacement model alone cannot fully explain the observed tsunami inundation. The observed tsunami inundation heights and extents could be reproduced by a tsunami inundation simulation with a source model that combined the estimated vertical displacement with multiple subaerial-submarine landslides. Plain Language Summary The tsunami that devastated Palu and other coastal towns inside Palu Bay on 28 September 2018 was recorded at a sea level monitoring station in Pantoloan. The recorded tsunami wave data are used in an inversion method to estimate the source of the tsunami in the form of an initial seafloor displacement. We found that the seafloor displacement was the main cause of the large tsunami. Satellite images and field survey data suggest that landslides around multiple river deltas also generated local tsunami waves. Our numerical simulations of the tsunami inundation show that the disaster was caused by a combination of the sudden ground and seafloor changes from the earthquake, landslides, and the high tide at the time of the event. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000483812500015 |
WOS关键词 | SULAWESI ; RUPTURE ; SUPERSHEAR ; GENERATION ; SLIP |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/186021 |
专题 | 气候变化 |
作者单位 | 1.GNS Sci, Lower Hutt, New Zealand; 2.Inst Teknol Bandung, Fac Min & Petr Engn, Geophys Engn Study Program, Bandung, Indonesia; 3.Agcy Meteorol Climatol & Geophys BMKG, Jakarta, Indonesia; 4.Inst Teknol Bandung, Fac Min & Petr Engn, Global Geophys Res Grp, Bandung, Indonesia; 5.Inst Teknol Bandung, Ctr Marine & Coastal Dev, Bandung, Indonesia; 6.Inst Teknol Bandung, Fac Earth Sci & Technol, Oceanog Study Program, Bandung, Indonesia; 7.Botram Ocean Technol Res & Management, Jakarta, Indonesia; 8.Minist Marine Affairs & Fisheries, Jakarta, Indonesia; 9.King Abdullah Univ Sci & Technol, Thuwal, Saudi Arabia; 10.Indonesian Inst Sci LIPI, Res Ctr Geotech, Jakarta, Indonesia |
推荐引用方式 GB/T 7714 | Gusman, Aditya Riadi,Supendi, Pepen,Nugraha, Andri Dian,et al. Source Model for the Tsunami Inside Palu Bay Following the 2018 Palu Earthquake, Indonesia[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(15):8721-8730. |
APA | Gusman, Aditya Riadi.,Supendi, Pepen.,Nugraha, Andri Dian.,Power, William.,Latief, Hamzah.,...&Daryono, Mudrik Rahmawan.(2019).Source Model for the Tsunami Inside Palu Bay Following the 2018 Palu Earthquake, Indonesia.GEOPHYSICAL RESEARCH LETTERS,46(15),8721-8730. |
MLA | Gusman, Aditya Riadi,et al."Source Model for the Tsunami Inside Palu Bay Following the 2018 Palu Earthquake, Indonesia".GEOPHYSICAL RESEARCH LETTERS 46.15(2019):8721-8730. |
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