Probabilistic Assessment of Delayed Multi-fault Rupture Effect on Maximum Tsunami Runup along the East Coast of Korea

Yeo, Inchan; Jung, Tae-Hwa; Son, Sang Young; Yoon, Hyun‐Doug

doi:10.1007/s12205-021-0272-x

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…The tsunami numerical simulation was carried out using the Cornell Multi-grid Coupled Tsunami Model (COMCOT), which applies both linear and nonlinear shallow water equations (SWEs and NSWEs, respectively) [23,25,[27][28][29]. The equations were solved using the leap-frog staggered scheme as in the Finite Difference Method.…”

Section: Methodsmentioning

confidence: 99%

“…In addition to constructing a multilevel layer model, a numerical tsunami simulation was carried out with an earthquake as a generator, which was assumed to be a fault plane (Figure 4) [23,[26][27][28][29][30][31][32]. The fault plane model included earthquake hypocenter parameters as shown in Table 2, namely, latitude, longitude, depth, strength (magnitude), strike, dip, slip, and duration of fracture deformation (rupture duration).…”

Section: Methodsmentioning

confidence: 99%

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Reconstruction of the Indian Ocean Tsunami in 2004 in Sabang Based on the Current Land Cover for Tsunami Evacuation Sites Recommendations

Jihad,

Al Atas,

Banyunegoro

et al. 2023

J. Penelit. Fis. Apl.

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Sabang City has grown in term of city’s population as well as the tourism activity. The development also meant there are more area that has been used when compared to the time before the 2004 tsunami. This research was developed to re-identify tsunami-prone zones with the current land cover condition in Sabang City and to provide recommended safe locations, alternative evacuation routes, and additional evacuation sites. We used Cornell Multi-grid Coupled Tsunami Model (COMCOT) to carried out the tsunami simulation added with updated land cover to provide more accurate simulation model. The simulation pointed out several tsunami hazard zones in Sabang City, such as Balohan, Kuta Ateuh, and Iboih with expected tsunami heights to be more than 3 meters and arrival time less than 60 minutes. Those areas then surveyed to develop recommendations for tsunami risk reductions. The recommendations included nine additional evacuation buildings are proposed, three sites in each zone. Another recommendation is in form of evacuation routes in each zone to complement existing routes stated in RTRW document.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Reconstruction of the Indian Ocean Tsunami in 2004 in Sabang Based on the Current Land Cover for Tsunami Evacuation Sites Recommendations

Jihad,

Al Atas,

Banyunegoro

et al. 2023

J. Penelit. Fis. Apl.

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show abstract

“…Yeo et al 28 evaluated the effect on tsunami runup due to the delayed multi-faults activation along the east coast of Korea, finding 2 to 42% of amplification in comparison with a static tsunami generation, declaring the importance of the source kinematics for certain cases. Studies regarding the source velocity were addressed, for instance, by Fuentes et al 29 and Riquelme & Fuentes 30 .…”

Section: Introductionmentioning

confidence: 99%

Stochastic tsunami modeling induced by kinematic complex sources

Fuentes

Riquelme

2022

Sci Rep

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In this study, local tsunami hazard due to seismic sources is evaluated in a stochastic framework. Several assumptions such as static passive generation, constant rake angle and source centroid (among others) are relaxed. Spatial uncertainties are modeled in a large set of scenarios. The proposed methodology is easy to implement and can be combined with other types of sources or hazards. Application in the Kuril-Kamchatkah trench shows a straightforward use of our methodology, producing simple hazard maps, which can be replicated in any region of the world.

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Modified Model of Sound Velocity with Different Saturation in Fractured Sandstone

Zhang

Shu

et al. 2022

sci adv mater

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The hazards of surrounding rock sheeting, collapse and rock explosion during the excavation of underground projects can be regarded as the macroscopic dynamics of the evolutionary development of their internal fractures, mostly accompanied by acoustic emission phenomena. The application of acoustic emission detection technology can quickly determine the existence of fissures in the surrounding rock and predict their approximate location and spatial spread. Therefore, considering the effect of fissures on the sound velocity propagation law. In this work, experiments on the identification of acoustic emission signal paths in solid media with different void states are carried out, and the path propagation law of acoustic emission signals is explored and studied. A comparative analysis of acoustic emission source localization in fractured sandstone with different sensor arrays at different saturation levels was carried out using water as the coupling agent. The acoustic emission source 3D localization results are optimized by correcting the time difference model. The results show that the acoustic emission signal propagation conforms to the shortest distance principle. In the localization of 3D cylindrical AE sources, it is suitable to select a combined array of spatial tetrahedral sensors for better localization. As the saturation increases the positioning effect gets closer to the actual value. The sound source localization effect of the sound velocity correction model based on the time difference method is closer to the actual lead break position. In actual engineering, water as a benign coupling agent can better improve the accuracy of AE source localization in fracture-containing sandstone, which can provide some guiding suggestions for related engineering.

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Probabilistic Assessment of Delayed Multi-fault Rupture Effect on Maximum Tsunami Runup along the East Coast of Korea

Cited by 3 publications

References 24 publications

Reconstruction of the Indian Ocean Tsunami in 2004 in Sabang Based on the Current Land Cover for Tsunami Evacuation Sites Recommendations

Reconstruction of the Indian Ocean Tsunami in 2004 in Sabang Based on the Current Land Cover for Tsunami Evacuation Sites Recommendations

Stochastic tsunami modeling induced by kinematic complex sources

Modified Model of Sound Velocity with Different Saturation in Fractured Sandstone

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