Analysis of seismicity in the Colombian Pacific Coast: tool to define tsunami sources generadora de tsunami en el litoral Pacífico colombiano
DOI:
https://doi.org/10.26640/22159045.268Keywords:
Colombian Pacific Coast, subduction zone, tsunami, Gutenberg-Richter Law, Gumbel type I, seismic risk, risk managementAbstract
This research focuses on the study of seismic activity in the Colombian Pacific Coast in order to identify and characterize potential tsunami generating zones, from the application of descriptive and inferential statistics, using the Gutenberg-Richter law for knowing the occurrence of earthquakes according to their magnitude. Identify and characterize the tsunami generating sources is a key component in the evaluation of the hazard, which contributes to reducing the vulnerability of the habitants of the coastal areas, since it is a basic tool for the development of municipal contingency plans for tsunami and allow the National Risk Management Unit to make decisions concerning the management of disasters, training plans in response to tsunami and formulating mitigation strategies [1]. In a temporal space of 100 years, the probability of occurrence of an earthquake of magnitude 7.8 Mw in the Colombian Pacific Coast is 99% with a return period of 15.65 years. This study proposes as tsunami generating sources three potential zones, the zone of interaction between the three plates in proximity to Panama where attend the South American plate, Nazca and Cocos, Yaquina Graben zone, and Colombo-Ecuadorian Subduction Zone.Downloads
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References
[1] Sánchez R, Puentes M. Estimación de la amenaza por tsunami en el municipio de San Andrés de Tumaco, Pacífico Colombiano, utilizando información LiDAR. Bol. Cient. CIOH 2012;30:29-42.
[2] Restrepo JC, Otero LJ. Modelación numérica de eventos tsunamigénicos en la Cuenca Pacífica Colombiana-Bahía de Buenaventura. Rev. Acad. Colomb. Cienc. 2007;31(120): 363-377. ISSN 0370-3908.
[3] Gusiakov V. Tsunami generation potential of different tsunamigenic regions in the Pacific. Marine Geology 2005;215:3-9.
[4] Hayes G, Furlong K. Quantifying potential tsunami hazard in the Puysegur subduction zone,south of New Zealand. Geophysical Journal 2010;183:1512-1524.
[5] Ioualalen M, Ratzov G. The tsunami signature on a submerged promontory: the case study of the Atacames Promontory, Ecuador,Geophysical Journal 2011;184:680-688.
[6] Pedraza P. Geometría de la subducción de la placa Nazca en el suroeste de Colombia, implicaciones tectónicas y sísmicas. Tesis para optar al título de magister. Universidad Nacional de Colombia; 2006.
[7] Monsalve H, Mora H. Tectónica de placas, sismicidad y deformación en el noroccidente colombiano; 1999.
[8] Adamek S, Frohlich C, Pennington WD. Seismicity of the Caribbean-Nazca Boundary; constraints of Microplate Tectonics of the Panama Region. Journal of Geophysical Research 1988;93:2053-2075.
[9] Pennington WD. Subduction of the Eastern Panama basin and seismotectonics of Northwestern South America, Journal Geophysical research, 86, 10753-10770.
[10] Usselmann P. 2010. Geodinámica y ocupación humana del litoral Pacífico en el sur de Colombia y Ecuador desde el Holoceno (últimos 10000 años), Bulletin de I ́InstitutFrancaisd ́EtudesAndines 1981;39(3):589-602.
[11] Gumbel EJ. Statistics of Extremes, Columbia University Press. N.Y., USA; 1958.
[12] Gutenberg B, Richter CF. Earthquake Magnitude, Intensity, Energy and Acceleration, Bull. Seism. Soc. of America 1956;32(3) July.
[13] Tezcan SS. Probability Analysis of Earthquake Magnitudes, Turkish Earthquake Foundation; 1996.
[2] Restrepo JC, Otero LJ. Modelación numérica de eventos tsunamigénicos en la Cuenca Pacífica Colombiana-Bahía de Buenaventura. Rev. Acad. Colomb. Cienc. 2007;31(120): 363-377. ISSN 0370-3908.
[3] Gusiakov V. Tsunami generation potential of different tsunamigenic regions in the Pacific. Marine Geology 2005;215:3-9.
[4] Hayes G, Furlong K. Quantifying potential tsunami hazard in the Puysegur subduction zone,south of New Zealand. Geophysical Journal 2010;183:1512-1524.
[5] Ioualalen M, Ratzov G. The tsunami signature on a submerged promontory: the case study of the Atacames Promontory, Ecuador,Geophysical Journal 2011;184:680-688.
[6] Pedraza P. Geometría de la subducción de la placa Nazca en el suroeste de Colombia, implicaciones tectónicas y sísmicas. Tesis para optar al título de magister. Universidad Nacional de Colombia; 2006.
[7] Monsalve H, Mora H. Tectónica de placas, sismicidad y deformación en el noroccidente colombiano; 1999.
[8] Adamek S, Frohlich C, Pennington WD. Seismicity of the Caribbean-Nazca Boundary; constraints of Microplate Tectonics of the Panama Region. Journal of Geophysical Research 1988;93:2053-2075.
[9] Pennington WD. Subduction of the Eastern Panama basin and seismotectonics of Northwestern South America, Journal Geophysical research, 86, 10753-10770.
[10] Usselmann P. 2010. Geodinámica y ocupación humana del litoral Pacífico en el sur de Colombia y Ecuador desde el Holoceno (últimos 10000 años), Bulletin de I ́InstitutFrancaisd ́EtudesAndines 1981;39(3):589-602.
[11] Gumbel EJ. Statistics of Extremes, Columbia University Press. N.Y., USA; 1958.
[12] Gutenberg B, Richter CF. Earthquake Magnitude, Intensity, Energy and Acceleration, Bull. Seism. Soc. of America 1956;32(3) July.
[13] Tezcan SS. Probability Analysis of Earthquake Magnitudes, Turkish Earthquake Foundation; 1996.
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2014-12-07
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How to Cite
Analysis of seismicity in the Colombian Pacific Coast: tool to define tsunami sources generadora de tsunami en el litoral Pacífico colombiano. (2014). CIOH Scientific Bulletin, 32, 135-147. https://doi.org/10.26640/22159045.268
