TY - JOUR
T1 - Tsunami hazard assessment for the central and southern pacific coast of Colombia
AU - Escobar, Ronald Sanchez
AU - Diaz, Luis Otero
AU - Guerrero, Anlly Melissa
AU - Galindo, Milton Puentes
AU - Mas, Erick
AU - Koshimura, Shunichi
AU - Adriano, Bruno
AU - Urra, Luisa
AU - Quintero, Paola
N1 - Funding Information:
This study was carried out as part of the SATREPS project entitled “Application of more advanced technologies to strengthen research and response to seismic, volcanic and tsunami events and improve risk management in Colombia”, sponsored by the Japan International Cooperation Agency (JICA) and the Japan Science and Technology Agency (JST). We are grateful to the following institutions for their support: Dirección General Maritima - Centro de Investigaciones Oceanográficas e Hidrográficas del Pacífico (DIMAR - CCCP); the International Research Institute for Disaster Science (IRIDeS) and the Core Research Cluster of Disaster Science at Tohoku University, Japan (a Designated National University); Universidad del Norte - Grupo de Investigación en Geociencias GEO4; the Geoinformatics Unit of the Advanced Intelligence Center Project (RIKEN); the National Research Institute for Earth Sciences and Disaster Prevention (NIED); and the Servician Geológico de Colombia (SGC).
Funding Information:
This study was carried out as part of the SATREPS project entitled “Application of more advanced technologies to strengthen research and response to seismic, volcanic and tsunami events and improve risk management in Colombia”, sponsored by the Japan International Cooperation Agency (JICA) and the Japan Science and Technology Agency (JST). We are grateful to the following institutions for their support: Dirección General Maritima - Centro de Investigaciones Oceanográficas e Hidrográficas del Pacífico (DIMAR - CCCP); the International Research Institute for Disaster Science (IRIDeS) and the Core Research Cluster of Disaster Science at Tohoku University, Japan (a Designated National University); Universidad del Norte - Grupo de Investigación en Geociencias GEO4; the Geoinformatics Unit of the Advanced Intelligence Center Project (RIKEN); the National Research Institute for Earth Sciences and Disaster Prevention (NIED); and the Servician Geológico de Colombia (SGC).
Publisher Copyright:
© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
PY - 2020/12
Y1 - 2020/12
N2 - Highly destructive tsunamis occurred near the Pacific coast of Colombia in 1906 and 1979. Recent studies have established asperities within the subduction zone in this area, which can cause megathrust earthquakes triggering highly destructive tsunamis. In this study we assess the tsunami hazard in the main populated areas of Colombia Pacific coast by calculating the inundation depth and the maximum tsunami height from major scenario. A deterministic method is applied using slip deficit models and broadband slip models as tsunami sources. Result suggest that, for the worse-case scenario, the maximum deformation of the seafloor is 6.0 m within the Esmaraldas segment; the maximum height of the tsunami is 4.66 m, 4.34 m and 0.53 m around. Tumaco Island, Morro Island, and Cascajal Island (Buenaventura Bay), respectively. Two to five meters inundation depth were calculated in over 11% and 10% of the total areas of the islands of Tumaco and Morro, respectively. Based on these result, tsunami hazard maps were alaborated and will serve to create tsunami mitigation plans in these areas.
AB - Highly destructive tsunamis occurred near the Pacific coast of Colombia in 1906 and 1979. Recent studies have established asperities within the subduction zone in this area, which can cause megathrust earthquakes triggering highly destructive tsunamis. In this study we assess the tsunami hazard in the main populated areas of Colombia Pacific coast by calculating the inundation depth and the maximum tsunami height from major scenario. A deterministic method is applied using slip deficit models and broadband slip models as tsunami sources. Result suggest that, for the worse-case scenario, the maximum deformation of the seafloor is 6.0 m within the Esmaraldas segment; the maximum height of the tsunami is 4.66 m, 4.34 m and 0.53 m around. Tumaco Island, Morro Island, and Cascajal Island (Buenaventura Bay), respectively. Two to five meters inundation depth were calculated in over 11% and 10% of the total areas of the islands of Tumaco and Morro, respectively. Based on these result, tsunami hazard maps were alaborated and will serve to create tsunami mitigation plans in these areas.
KW - 1906 earthquake
KW - Colombia
KW - Tsunami hazard assessment
KW - slip model
KW - tsunami simulation
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U2 - 10.1080/21664250.2020.1818362
DO - 10.1080/21664250.2020.1818362
M3 - Article
AN - SCOPUS:85091358114
SN - 0578-5634
VL - 62
SP - 540
EP - 552
JO - Coastal Engineering in Japan
JF - Coastal Engineering in Japan
IS - 4
ER -