Developing an Event-Tree Probabilistic Tsunami Inundation Model for NE Atlantic Coasts: Application to a Case Study

2016 ◽  
pp. 3775-3794
Author(s):  
R. Omira ◽  
L. Matias ◽  
M. A. Baptista
Keyword(s):  
Event Tree ◽  
Ne Atlantic ◽  
Tsunami Inundation ◽  
Inundation Model

scholarly journals Case study: mapping the tsunami-hazard zone in the Pasir Jambak sub-district, in Padang, Indonesia

2021 ◽  
Vol 331 ◽  
pp. 04006
Author(s):  
Leli Honesti ◽  
Meli Muchlian
Keyword(s):  
Large Scale ◽  
Grid Point ◽  
Tsunami Hazard ◽  
Decision Makers ◽  
Tsunami Inundation ◽  
Tsunami Risk ◽  
Nested Grid ◽  
Inundation Map ◽  
Run Up

A tsunami hazard is an adverse event that causes damage to properties and loss of life. The problem in assessing a tsunami risk zone for a small area is significant, as available tsunami inundation zone data does not give detailed information for tsunami inundation and run-up in every nested grid. Hence, this study aims to establish a tsunami risk map in the Pasir Jambak sub-district, Padang, Indonesia. The map was carried out in every nested grid point of the area and on a large scale (1:5,000). The TUNAMI N3 program was used for the simulation of the tsunami inundation. A tsunami assessment was made through simulations in nine scenarios of fault parameter data for Sipora block earthquakes. The result of the study provides a tsunami inundation map. Furthermore, this tsunami inundation map can be used for communities, local authorities, government, and others for many studies, and decision-makers can come up with mitigation plans for a small study area.

scholarly journals Development of Tsunami Inundation Model with Effects of Underground Pipelines

2013 ◽  
Vol 69 (2) ◽  
pp. I_396-I_400
Author(s):  
Koki MIZUHASHI ◽  
Yoshimitsu TAJIMA ◽  
Shinji SATO ◽  
Hiroshi SANUKI
Keyword(s):  
Tsunami Inundation ◽  
Underground Pipelines ◽  
Inundation Model

Multi-Hazard Resilience Assessment of a Coastal Community Due to Offshore Earthquakes

2019 ◽  
Vol 13 (02) ◽  
pp. 1950008 ◽  
Author(s):  
M. Capozzo ◽  
A. Rizzi ◽  
G. P. Cimellaro ◽  
M. Domaneschi ◽  
A. Barbosa ◽  
...  
Keyword(s):  
Cascadia Subduction Zone ◽  
Economic Losses ◽  
Fragility Functions ◽  
Earthquake Intensity ◽  
Tsunami Inundation ◽  
Ground Failure ◽  
Cascading Effects ◽  
Innovative Methodology ◽  
The Pacific

It has been observed in different parts of the world that offshore earthquakes occurred in coastal regions were followed by tsunamis and catastrophic damages due to cascading effects. In this paper, an innovative methodology for the estimation of direct damage losses and resilience for a given community is presented. It combines two existent methodologies, including both earthquake and tsunami hazards. In detail, fragility functions related to earthquake intensity, ground failure and tsunami inundation are combined with regional hazard data to estimate damages and direct economic losses of buildings and bridges. The coastal city of Seaside in Oregon has been used as a case study and as one of the most vulnerable town in the Pacific North United States due to the proximity of a nearfield Cascadia Subduction Zone. The results indicate that, when the earthquake and the subsequent tsunami inundation are considered together, there is an overwhelming increase in the loss estimates in comparison to the case when the tsunami is separately considered.

Barrier Analysis of Emergency Disconnect on DP Mobile Offshore Drilling Units

2020 ◽  
Author(s):  
Haibo Chen ◽  
Tommy Bauge ◽  
Lorents Reinås ◽  
Paul Landeråen
Keyword(s):  
Event Tree ◽  
Offshore Drilling ◽  
Tree Model ◽  
Barrier Analysis ◽  
Different Types ◽  
Calculated Risk ◽  
Sensitivity Studies ◽  
Reduction Effect ◽  
Norwegian Continental Shelf

Abstract Technical, operational and organization barrier elements related to the emergency disconnect on dynamically positioned mobile offshore drilling units on the Norwegian Continental Shelf are identified. Position loss scenarios are analyzed based on the published station-keeping incidents by IMCA (International Marine Contractors Association). How these barrier elements may fail in different types of position loss scenarios are addressed qualitatively and quantitatively in an event tree model. A case study is provided in the paper and notational probability of failure to disconnect given position loss is calculated. Risk reduction effect of various barrier elements are investigated by sensitivity studies. The paper provides insights into risk given position loss and failure of emergency disconnect on DP MODUs. It offers decision support for risk management of DP drilling and well operations in shallow water and harsh environment.

scholarly journals An Evaluation of Tsunami Hazard Modeling in Gunungkidul Coastal Area using UAV Photogrammetry and GIS. Case Study: Drini Coastal Area

2019 ◽  
Vol 125 ◽  
pp. 09005
Author(s):  
Muh Aris Marfai ◽  
Hendy Fatchurohman ◽  
Ahmad Cahyadi
Keyword(s):  
Coastal Area ◽  
High Spatial Resolution ◽  
Low Cost ◽  
Tsunami Hazard ◽  
Hazard Maps ◽  
Tsunami Inundation ◽  
The Government ◽  
Evacuation Routes ◽  
Elements At Risk

In recent years, Tourism activities in Gunungkidul Coastal Area rapidly increased. A large number of tourists visiting the coast considered as elements at risk that are exposed to tsunami hazards. Disaster infrastructures provided by the government e.g. hazard maps, evacuation routes, and locations for assembly points are inadequate. The tsunami inundation models provided by the government are based on national topographic maps (RBI), resulting in inaccurate models. DEM generation using UAV Photogrammetry produces high spatial resolution data that results in more accurate tsunami inundation model. The results of the model using UAV photogrammetry are also capable of producing several inundation scenarios and determine the safe areas that can be used for temporary evacuation sites. The use of UAV photogrammetry for tsunami inundation models provides many advantages including low cost and accurate model results. Evaluation of hazard maps and assembly points using UAV Photogrammetry modeling lead to more effective and less time-consuming on the evacuation process.

Fault-zone evolution in layered basalt sequences: A case study from the Faroe Islands, NE Atlantic margin

2012 ◽  
Vol 124 (7-8) ◽  
pp. 1382-1393 ◽  
Author(s):  
R. J. Walker ◽  
R. E. Holdsworth ◽  
J. Imber ◽  
D. Ellis
Keyword(s):  
Fault Zone ◽  
Faroe Islands ◽  
Ne Atlantic ◽  
Atlantic Margin

An overview of cold-water coral protection on the high seas: The Hatton bank (NE Atlantic)—A case study

Marine Policy ◽  
2011 ◽  
Vol 35 (5) ◽  
pp. 615-622 ◽  
Author(s):  
P. Durán Muñoz ◽  
M. Sayago-Gil
Keyword(s):  
Cold Water ◽  
Ne Atlantic ◽  
Water Coral ◽  
High Seas

scholarly journals Using the event tree analysis in the investigation of a work accident

2020 ◽  
Vol 305 ◽  
pp. 00088
Author(s):  
Radu Emil Mares ◽  
Mariana Nagy ◽  
Ioan Radu
Keyword(s):  
Graphical Representation ◽  
Logical Framework ◽  
Event Tree ◽  
Event Tree Analysis ◽  
Tree Analysis ◽  
Decision Method ◽  
Safety Barriers ◽  
Work Accident ◽  
Work Accidents

Work accidents occur when the system doesn’t work properly and the safety barriers are avoided. The analysis of such events can be made by different methods. This paper aims at demonstrating how a work accident can be investigated by the use of the Events’ Tree decision method. Applying the steps of the algorithm, the method leads to determinate the causes of a work accident that occurs during the starting procedure of an equipment. By building the events’ tree, a graphical representation of the operations and decisions lead to a logical framework that explains the work accident. The case study consists of the description, analysis, investigation and mitigation of a work accident that occurred at the Rehabilitation of a road in Arad County. Using the Events’ Tree decision method, the cause of the accident was found to be the weak training of the operator and the carelessness of the job manager.

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