Numerical modeling of the December 22, 2018 Anak Krakatau landslide and the following tsunami in Sunda Strait, Indonesia

Paris, Alexandre; Heinrich, Philippe; Paris, Raphaël; Guérin, Cyrielle; Hébert, Hélène; Gailler, Audrey

doi:10.1109/oceanse.2019.8867270

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…Rakata and Sertung IOP Publishing doi:10.1088/1755-1315/1250/1/012020 2 islands located less than 5 km from Anak Krakatoa and facing directly its Southwest flank. A numerical study to investigate the effect of landslide volume in Anak Krakatoa tsunami has been done by [7]. By using an assumption that a rigid body with a volume of 0.15 km3 sliding into water as a granular flow under gravity forces, destructive wave of 1.7 m height is observed in the Tanjung Lesung (approximately 50 km south east of Anak Krakatoa) after 28 minutes of propagation.…”

Section: Introductionmentioning

confidence: 99%

Submarine landslide-induced tsunami generation in Makassar strait, Indonesia using Non-hydrostatic wave model

Gumbira,

Wibowo,

Khoirunnisa

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Tsunami modelling of potential landslide-induced tsunami in Makassar Strait is carried out to quantify possible damage to the nearby cities. The numerical model is used to represent the wave generation by using NHWAVE model. The simulations consist of a series of scenarios based on distinct size of the landslide volume. Four landslides with volume 5, 8, 70, and 200 km3 are used as tsunami sources in the initiation stage. The sources are evenly distributed in the strait addressing different landslide location. Maximum wave heights of 1.5 m are found in the area between Palu and Bangkir from case 1 and around Talok from case 2 simulations. The empirical run-up calculation of 7.5 m is estimated at the land for the presented wave height. The value significantly elevates the case 3 and 4 proportional to the volume values. The waves impact more than half of coastline with maximum value found in the Sulawesi side. Interestingly, wide and narrow shelf next to Kalimantan Island plays an important role in reducing the tsunami hazard level.

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Section: Introductionmentioning

confidence: 99%

Submarine landslide-induced tsunami generation in Makassar strait, Indonesia using Non-hydrostatic wave model

Gumbira,

Wibowo,

Khoirunnisa

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…From 2004 until now, in the Sunda Arc area, there have been at least 11 tsunamis [5]. The last tsunami in this area occurred on December 25, 2018, due to a partial landslide of the body of Mount Krakatau during high waves [6], [7].…”

Section: Introductionmentioning

confidence: 99%

Tsunami Database Development in the Sunda Arc Indonesia to Support Early Warning through Artificial Intelligence Technology

Wibowo,

Hendriyono,

Khoirunnisa

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

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The Sunda Arc-Indonesia is very vulnerable to tsunamis. There have been at least 55 tsunamis from 416â€“2018. Tsunami in the Sunda Arc is classified as a near-field tsunami with an arrival time of < 30 minutes after the earthquake. Meanwhile, the BMKG issued a warning within 5 minutes after the earthquake; therefore, speed in giving warnings is very vital. Artificial intelligence is an alternative technology that can quickly predict a tsunami's height and arrival time. For developing this technology, adequate quality and quantity of data and information on tsunamis are needed. Therefore, this study was conducted to build a tsunami database based on the results of simulations and numerical modeling of multiple scenarios from hypothetical and historical earthquake sources. This study used the open-source TUNAMI F1 model. This model simulates the propagation of tsunami waves using a linear equation. This study obtained 465 hypothetical earthquake sources, 534 historical earthquake sources, and 9,990 datasets from tsunami model simulation results. Each dataset contains ten information. Based on the 8.2 magnitude earthquake scenario, the potential tsunami hazard is 3â€“47 m with an estimated arrival time of < 30 minutes. An earthquake < 7 Mw can trigger a tsunami, especially an earthquake that is shallow and close to the coast, even though the tsunami height is < 0.5m. This data will be used to train an artificial intelligence-based tsunami prediction system. The artificial intelligence-based tsunami prediction system is expected to be used to strengthen the Indonesia tsunami early warning system (InaTEWS).

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“…Rakata and Sertung islands located less than 5 km from Anak Krakatoa and facing directly its Southwest flank. A numerical study to investigate the effect of landslide volume in Anak Krakatoa tsunami has been done by 7 . By using an assumption that a rigid body with a volume of 0.15 km 3 sliding into water as a granular flow under gravity forces, destructive wave of 1.7 m height is observed in the Tanjung Lesung (approximately 50 km south east of Anak Krakatoa) after 28 minutes of propagation.…”

Section: Introductionmentioning

confidence: 99%

Modelling of Potential Tsunami in Makassar Strait, Indonesia: Submarine Landslide-Induced Tsunami Simulations

Gumbira

Wibowo

Khoirunnisa

et al. 2021

Preprint

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Tsunami modelling of potential landslide-induced tsunami in Makassar Strait is carried out to quantify possible damage to the nearby cities. Two numerical models are used to represent the wave generation and propagation by using NHWAVE and FUNWAVE models, respectively. The simulations consist of a series of scenarios based on distinct size of the landslide volume. Four landslides with volume 5, 8, 70, and 200 km 3 are used as tsunami sources in the initiation stage. The sources are evenly distributed in the Strait addressing different landslide location. Maximum wave heights of 1.5 m are found in the area between Palu and Bangkir from case 1 and around Talok from case 2 simulations. The empirical run-up calculation of 7.5 m is estimated at the land for the presented wave height. The value significantly elevates the case 3 and 4 proportional to the volume values. The waves impact more than half of coastline with maximum value found in the Sulawesi side. Interestingly, wide and narrow shelf next to Kalimantan Island plays an important role in reducing the tsunami hazard level.

show abstract

Numerical modeling of the December 22, 2018 Anak Krakatau landslide and the following tsunami in Sunda Strait, Indonesia

Cited by 4 publications

References 18 publications

Submarine landslide-induced tsunami generation in Makassar strait, Indonesia using Non-hydrostatic wave model

Submarine landslide-induced tsunami generation in Makassar strait, Indonesia using Non-hydrostatic wave model

Tsunami Database Development in the Sunda Arc Indonesia to Support Early Warning through Artificial Intelligence Technology

Modelling of Potential Tsunami in Makassar Strait, Indonesia: Submarine Landslide-Induced Tsunami Simulations

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