Tsunami scenario triggered by submarine landslide offshore of northern Sumatra Island and its hazard assessment

Haridhi, Haekal A.; Huang, Bor‐Shouh; Wen, Kuo‐Liang; Mirza, Arif; Rizal, Syamsul; Purnawan, Syahrul; Fajri, Ilham; Klingelhoëfer, Frauke; Liu, Char‐Shine; Lee, Chao Shing; Wilson, Crispen R.; Wu, Tso-Ren; Setiawan, Ichsan; Phung, Van Bang

doi:10.5194/nhess-2021-375

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…Selanjutnya, sumber pembangkitan tsunami yang dimodelkan hanya berdasarkan mekanisme gempa tektonik. Perairan utara Sumatera sendiri berpotensi terjadi tsunami yang dibangkitkan oleh longsoran bawah laut (Haridhi et al, 2022).…”

Section: Hubungan Kesiapsiagaan Masyarakat Dan Dan Potensi Tsunamiunclassified

Asesmen Potensi Tsunami Dan Kesiapsiagaan Masyarakat Pesisir: Studi Kasus Teluk Ulee Lheue, Aceh Besar

Benazir¹,

Syamsidik

Idris

2022

JTH

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The 2004 Indian Ocean Tsunami, which devastated the coasts of Aceh and Nias, revealed that the event was a mega-hazard category. Following the disaster, a new era in the development of tsunami mitigation throughout the archipelago began. Nonetheless, given the impact of the two tsunamis that occurred at the end of 2018, achieving mitigation within 17 years poses a unique challenge and high priority. The relationship between tsunami-prone areas and community preparedness has become a crucial factor in achieving regional disaster resilience. The objective of this research is to provide a regional assessment of tsunamis risk as well as community preparedness for future tsunami. The coast of Teluk Ulee Lheue, Aceh Besar, was chosen as the location for the assessment as a role model. The research method consists of tsunami mathematical modeling considering the impact caused by the magnitude of earthquakes 8.2, 9.15, and 9.2. The Nonlinear Shallow Water Equation (NSWE) model was used in the simulation, which was discretized using the explicit leap-frog Finite Difference Method. Field activities were included not only to collect topography and land use data but also to gather information and community response. The data was provided directly from the local community through the completion of a questionnaire, with a total of 150 respondents being evaluated. The findings of this study reveal that the consequences of the tsunami inundation remain quite considerable, even for a smaller-scale earthquake than the previous 2004 event. In general, the degree of community preparedness seems to be quite high, especially in terms of tsunami awareness. An improvement in disaster emergencies is required, specifically in the household sector. However, with a high degree of community preparedness, it would be essential to carry out individual evacuations rapidly. Keywords: tsunami hydrodynamics, numerical simulation, run-up, community preparedness, environmental social

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Section: Hubungan Kesiapsiagaan Masyarakat Dan Dan Potensi Tsunamiunclassified

Asesmen Potensi Tsunami Dan Kesiapsiagaan Masyarakat Pesisir: Studi Kasus Teluk Ulee Lheue, Aceh Besar

Benazir¹,

Syamsidik

Idris

2022

JTH

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Connecting community’s perspectives on tsunami risk to anticipated future tsunamis: a reflection from a progress of tsunami preparedness from a coastal community in Aceh-Indonesia after 19 years of the 2004 Indian Ocean Tsunami

Benazir,

Syamsidik,

Idris

et al. 2023

Geoenviron Disasters

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This paper reflects on the progress of tsunami preparedness in a coastal community in Aceh, Indonesia, nearly two decades after the catastrophic 2004 Indian Ocean Tsunami. The research employs a comprehensive approach to thoroughly evaluate and comprehend the community’s preparedness, its correlation with local perceptions of tsunami risk, and delves into the prevalence of tsunamis in the area, with a specific emphasis on the significant impact of the 2004 Indian Ocean Tsunami on the coastal community of Aceh. To investigate the community’s readiness and the potential impacts of tsunamis at the study site, tsunami simulations were performed using the shallow water equation within the COMCOT (Cornell Multi-grid Coupled Tsunami) model. These simulations assessed run-up and inundation scenarios, thereby providing justification for the potential tsunami impact in the area. Modelling the scenario of tsunami in the region is important to measure the potential impact and estimation time for community to prepare the evacuation plan. In addition to the numerical modeling, a mixed-method approach was employed, involving the distribution of questionnaires and conducting in-depth interviews with 150 respondents directly on-site. These assessments yielded valuable insights into community perspectives on tsunami risk and their preparedness measures. The findings contribute to the development of effective strategies for disaster management by integrating local knowledge, experiences, and socialization programs. The study emphasizes the significance of ongoing endeavors to enhance community preparedness and mitigate the consequences of tsunamis.

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Tsunami scenario triggered by submarine landslide offshore of northern Sumatra Island and its hazard assessment

Cited by 2 publications

References 31 publications

Asesmen Potensi Tsunami Dan Kesiapsiagaan Masyarakat Pesisir: Studi Kasus Teluk Ulee Lheue, Aceh Besar

Asesmen Potensi Tsunami Dan Kesiapsiagaan Masyarakat Pesisir: Studi Kasus Teluk Ulee Lheue, Aceh Besar

Connecting community’s perspectives on tsunami risk to anticipated future tsunamis: a reflection from a progress of tsunami preparedness from a coastal community in Aceh-Indonesia after 19 years of the 2004 Indian Ocean Tsunami

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