scholarly journals Submarine Deposition of a Subaerial Landslide in Taan Fiord, Alaska

2018 ◽  
Vol 123 (10) ◽  
pp. 2443-2463 ◽  
Author(s):  
P. J. Haeussler ◽  
S. P. S. Gulick ◽  
N. McCall ◽  
M. Walton ◽  
R. Reece ◽  
...  
Keyword(s):  
Subaerial Landslide

Propagation characteristics of subaerial landslide-generated impulse waves

2018 ◽  
Vol 19 (1) ◽  
pp. 203-230 ◽  
Author(s):  
Hongcheng Xue ◽  
Qian Ma ◽  
Mingjun Diao ◽  
Lei Jiang
Keyword(s):  
Propagation Characteristics ◽  
Subaerial Landslide ◽  
Impulse Waves

scholarly journals Scale effects in subaerial landslide generated impulse waves

2007 ◽  
Vol 44 (5) ◽  
pp. 691-703 ◽  
Author(s):  
Valentin Heller ◽  
Willi H. Hager ◽  
Hans-Erwin Minor
Keyword(s):  
Scale Effects ◽  
Subaerial Landslide ◽  
Impulse Waves

Impact on Shoreline Region by Waves Generated From Submarine and Surface Piercing Slides

Volume 1 ◽  
2004 ◽  
Author(s):  
Remus Ciobotaru ◽  
Razvan Bidoae ◽  
Peter E. Raad
Keyword(s):  
Hydrodynamic Force ◽  
Rectangular Channel ◽  
Three Dimensional ◽  
Single Wave ◽  
Subaerial Landslide ◽  
Complex Shapes ◽  
Different Types ◽  
Run Up ◽  
Solid Bodies ◽  
Moving Bodies

The generation of single large waves by a forced motion of solid bodies in a three-dimensional, rectangular channel is investigated. The moving bodies can have simple (idealized) or more complex shapes. The shape and characteristics of the imposed motion are shown to affect the dynamics of the resulting single wave. Waves generated by three different types of landslides are compared by recording the hydrodynamic force and run-up height on a solid plane wall. The three types of landslides investigated are: (i) bottom movement (submarine landslide), (ii) falling mass (partially submerged landslide), and (iii) sliding mass (subaerial landslide).

scholarly journals Numerical modeling of the subaerial landslide source of the 22 December 2018 Anak Krakatoa volcanic tsunami, Indonesia

2020 ◽  
Vol 195 ◽  
pp. 106733 ◽  
Author(s):  
Mohammad Heidarzadeh ◽  
Takeo Ishibe ◽  
Osamu Sandanbata ◽  
Abdul Muhari ◽  
Antonius B. Wijanarto
Keyword(s):  
Numerical Modeling ◽  
Subaerial Landslide ◽  
Volcanic Tsunami

scholarly journals Modeling of the 1783 Tsunami Event in Scilla Generated by Landslide

Land ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 69
Author(s):  
Francesca Minniti ◽  
Giuseppe Barbaro ◽  
Giandomenico Foti
Keyword(s):  
Numerical Simulations ◽  
Early Warning ◽  
Historical Data ◽  
Validity Of Results ◽  
Topographic Data ◽  
The North ◽  
Subaerial Landslide ◽  
Tsunami Event ◽  
Seismic Crisis

In 1783, an event that has gone down in history as the great seismic crisis in Calabria began, during which two major earthquakes occurred, affecting the Calabrian ridge from the Strait to the north. Between 6 and 7 February in Scilla a tsunami occurred that caused the greatest number of victims in Italy: 1500 people. The mechanism that triggered the tsunami was the detachment of a ridge of rock due to a violent earthquake that affected the area; this detachment caused a subaerial landslide which, by sliding, then deposited the rock on the seabed a few kilometers from the coast, immediately generating the tsunami event. The objective of this study is to perform numerical simulations for tsunami events that occurred in history and use models that perform the propagation of a tsunami, using the best possible bathymetric and topographic data and the historical data to compare the validity of the results. In this way, one can obtain the validation of a model that can be used to simulate possible events of this magnitude on the Calabrian coasts and therefore be able to develop a reliable early warning tsunami system; it also has the advantage of perfectly combining computational burdens and the validity of results.

scholarly journals Engineering-Geological Analysis of a Subaerial Landslide in Taan Fiord, Alaska

2021 ◽  
Vol 13 (21) ◽  
pp. 4258
Author(s):  
Xiaoru Dai ◽  
Barbara Schneider-Muntau ◽  
Wolfgang Fellin ◽  
Andrea Franco ◽  
Bernhard Gems
Keyword(s):  
Remote Sensing ◽  
Slope Stability ◽  
Large Scale ◽  
Limit Equilibrium ◽  
Remote Sensing Data ◽  
Sensing Data ◽  
Stability Analyses ◽  
Subaerial Landslide ◽  
Landslide Event

On 17 October 2015, a large-scale subaerial landslide occurred in Taan Fiord, Alaska, which released about 50 Mm3 of rock. This entered the water body and triggered a tsunami with a runup of up to 193 m. This paper aims to simulate the possible formation of a weak layer in this mountainous slope until collapse, and to analyze the possible triggering factors of this landslide event from a geotechnical engineering perspective so that a deeper understanding of this large landslide event can be gained. We analyzed different remote-sensing datasets to characterize the evolution of the coastal landslide process. Based on the acquired remote-sensing data, Digital Elevation Models were derived, on which we employed a 2D limit equilibrium method in this study to calculate the safety factor and compare the location of the associated sliding surface with the most probable actual location at which this landslide occurred. The calculation results reflect the development process of this slope collapse. In this case study, past earthquakes, rainfall before this landslide event, and glacial melting at the toe may have influenced the stability of this slope. The glacial retreat is likely to be the most significant direct triggering factor for this slope failure. This research work illustrates the applicability of multi-temporal remote sensing data of slope morphology to constrain preliminary slope stability analyses, aiming to investigate large-scale landslide processes. This interdisciplinary approach confirms the effectiveness of the combination of aerial data acquisition and traditional slope stability analyses. This case study also demonstrates the significance of a climate change for landslide hazard assessment, and that the interaction of natural hazards in terms of multi-hazards cannot be ignored.

Landslide tsunamis, from origin to hazard, an overview from the SLATE project

2021 ◽  
Author(s):  
Finn Løvholt ◽  
Matthias Rauter ◽  
Thomas Zengaffinen-Morris ◽  
Carl Harbitz
Keyword(s):  
Numerical Models ◽  
Hazard Analysis ◽  
Navier Stokes ◽  
Tsunami Height ◽  
Horizon 2020 ◽  
Research And Innovation ◽  
Research Activities ◽  
Subaerial Landslide ◽  
Landslide Dynamics ◽  
Landslide Tsunamis

<p>Landslide tsunamis, despite their importance for the overall tsunami hazard, is not as well understood as earthquake tsunamis. Several uncertain factors contribute to the lack of understanding, such as the variability in the source mechanisms, the dynamics of the landslide and the tsunami generation, as well as the temporal probability of occurrence of landslide events. Here, we present an overview of research activities on landslide tsunami analyses in the H2020 ITN-SLATE project. This research originates from two PhD student projects within SLATE, which have so far resulted in at least six publications with several more in the pipeline. In the SLATE project, we show that both translational and rotational dynamic attributes of the landslide are good indicators of the tsunamigenic potential of slumps using the visco-plastic landslide model BingClaw, by correlating the acceleration times mass and also angular momentum with the induced tsunami height. Moreover, we have employed Navier-Stokes simulations to hindcast model experiments of subaerial landslide tsunamis. By using the experience modelling this benchmark to model tsunamis in many other geometrical settings, the Navier-Stokes model is further employed to test generality and discuss several existing parametric relationships from literature so far available only empirically. New 3D formulations for granular landslide dynamics have further been established. Numerical models have also been set up to simulate real cases such as Anak Krakatoa. Finally, a broad parametric study that constrain the landslide dynamics for a landslide probabilistic hazard analysis is undertaken, to show how using past observations can effectively reduce uncertainties related to landslide dynamics. Combining an overview of the study with some highlights, we show how SLATE has contributed to increasing our understanding of landslide tsunamis and their hazard. We also discuss how the outcome of this project provides a platform for further research. This work has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 721403.</p>

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