Effects of realistic topography on the ground motion of the Colombian Andes – A case study at the Aburrá Valley, Antioquia

Restrepo, Doriam; Bielak, Jacobo; Serrano, Ricardo; Gómez, Juan David; Jaramillo, Janeth Hernández

doi:10.1093/gji/ggv556

Cited by 25 publications

(14 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The undulating nature of surface topography leads to scat-tering or focusing of propagating waves (Lee et al, 2009a, b). Previous studies found that topography amplifies ground shaking at mountain tops and ridges, while it de-amplifies it in valleys; see, for example, Hartzell et al (1994) and Spudich et al (1996) in California, Lee et al (2009a, b) in Taiwan, Hough et al (2010) in Haiti, Kumagai et al (2011) in Ecuador and Restrepo et al (2016) in Colombia. Most seismic active areas are rugged in nature, which makes these regions prone to topographic (de-)amplification (Lee et al, 2009a;Hough et al, 2010;Shafique and van der Meijde, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Several satellite-based studies primarily focused on field displacement and slip distribution, such as Parsons et al (2006), Avouac et al (2006), Pathier et al (2006), Wang et al (2007) and Leprince et al (2008). Others addressed relationships between co-seismic displacement and landslides (e.g., Kamp et al, 2010;Dunning et al, 2007;Saba et al, 2010). Topographic amplification of seismic responses induced by the Kashmir earthquake was first evaluated by Shafique et al (2008) using the topographic aggravation factor (TAF) after Bouckovalas and Papadimitriou (2005).…”

Section: Introductionmentioning

confidence: 99%

“…Paolucci et al (2016) estimated ground motion for the historical 1915 Marsica earthquake in the Facino Basin incorporating topography and bedrock morphology. Restrepo et al (2016) simulated four scenario earthquakes of M w 5 along the Romeral fault for the metropolitan area of Medellín (Colombia), demonstrating how topography affects ground response. Smerzini et al (2017) studied site effects by taking the historical M w 6.5 1978 Volvi earthquake in the Thessaloniki urban area (Greece).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The impact of topography on seismic amplification during the 2005 Kashmir earthquake

Khan

Meijde

Werff

et al. 2020

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. Ground surface topography influences the spatial distribution of earthquake-induced ground shaking. This study shows the influence of topography on seismic amplification during the 2005 Kashmir earthquake. Earth surface topography scatters and reflects seismic waves, which causes spatial variation in seismic response. We performed a 3-D simulation of the 2005 Kashmir earthquake in Muzaffarabad with the spectral finite-element method. The moment tensor solution of the 2005 Kashmir earthquake was used as the seismic source. Our results showed amplification of seismic response on ridges and de-amplification in valleys. It was found that slopes facing away from the source received an amplified seismic response, and that 98 % of the highly damaged areas were located in the topographically amplified seismic response zone.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The impact of topography on seismic amplification during the 2005 Kashmir earthquake

Khan

Meijde

Werff

et al. 2020

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…

{boldK}^{e} = \sum_{n = 1}^{5} β_{n} {boldK}_{n}^{t},

{boldM}^{e} = \sum_{n = 1}^{5} β_{n} {boldM}_{n}^{t} .

Due to its simplicity, the VT method uses the viscous Rayleigh type model damping as the material attenuation model. Further details on the VT method and its application to a case study for the Aburrá valley, Colombia can be found in Restrepo and Bielak 28 and Restrepo et al, 30 respectively. Below, there is a brief description of the three input models used by Hercules to conduct the simulations and the approximation of the nonlinear site effects.…”

Section: Methodology For the Assessment Of The Seismic Risk Of Determmentioning

confidence: 99%

Integration of 3D large‐scale earthquake simulations into the assessment of the seismic risk of Bogota, Colombia

Riaño

Reyes

Liu

et al. 2020

Earthq Engng Struct Dyn

Self Cite

View full text Add to dashboard Cite

Bogotá, the capital city of Colombia, is mostly located on a lacustrine soil deposit surrounded by hills in a central plateau of the eastern cordillera of the Colombian Andes. This highly populated urban area is exposed to a significant seismic hazard from local and regional fault systems. In addition, the potential ground motion amplification during earthquakes due to the presence of soft soil deposits, along with the effects of the surface and subsurface topography, can strongly influence the seismic hazard and consequently the seismic risk to the city. This study aims to develop a physics-based framework to generate synthetic ground records that can help better understand the seismic response of the basin and other amplification effects during strong earthquake shaking in the region, and to incorporate these effects into the estimation of seismic risk. To this end, a set of simulations were first conducted on Hercules, the wave propagation octree-based finite element simulator developed by the Quake Group at Carnegie Mellon University, to identify the impacts of hypothetical strong earthquakes scenarios. Then, the results from these simulations were integrated with the exposure and vulnerability information previously developed for the main building constructions in the city to assess the seismic risk in the region under different conditions of analysis. Results from this more detailed model are compared with previously published results from simplified models. Sensitivity analyses help identify critical aspects that should be considered in the future to improve the seismic risk assessment of infrastructure.

show abstract

“…The undulating nature of surface topography leads to scattering or focusing of propagating waves (Lee et al, 2009a,b). Previous studies found that topography amplifies the ground shaking at mountain tops and ridges, while it de-amplifies in valleys; for example Hartzell et al (1994) and Spudich et al (1996) in California; Lee et al (2009a,b) in Taiwan; Hough et al (2010) in Haiti, Kumagai et al (2011) in Ecuador, and Restrepo et al (2016) in Colombia. Most seismic active areas are rugged in nature, which makes these regions prone to topographic (de-)amplification (Lee et al, 2009a;Hough et al, 2010;Shafique and van der Meijde, 2015).…”

Section: Introductionmentioning

confidence: 98%

Is there a safe spot?

Khan¹

View full text Add to dashboard Cite

This dissertation is approved by: prof.dr. M. van der Meijde (supervisor) dr. H.M.A. van der Werff (co-supervisor) dr. M. Shafique (co-supervisor) First praise is to Allah, the Almighty, for giving sustenance and guidance for this success. Secondly, I express my sincere gratitude to my supervisors for their immense support, sharing in-depth scientific knowledge, guidance and encouragement. Spacial gratitude to my promotor, Prof. Dr. Mark van der Meijde for accepting me under his guidance and trusting me during the entire period. Your straight forwardness and supportive guidance is not only part of this success story, but will surely be in the future. Every progress meeting with you provided me a boost during the hard moments of this journey. It has really been an honor to work with you. Heartily gratitudes are extended to my co-promotor Dr. Harald van der Werff for his immense support with Linux, programming, SPECFEM3D, LaTex and much more. This work would not have even started without you in the team. Also, without your valuable and timely comments it would have been difficult to complete this dissertation. Gratitudes are further extended to my co-promotor Dr. Muhammad Shafique, whose research motivated me for this study. Without his research, data and support, this work might not have been possible. Thank you all for every support that guided me through this journey of learning and more importantly building my attitude of systematic investigation of a scientific problem. I enjoyed working with you and wish to continue the same in future. Profound gratitude is due to the friends and colleagues of ESA Department. Thanks to Islam, Effie, Thea, Haydar, Mathew and Riswan for your long lasting company and support, whenever I needed. I really enjoyed your company and had a great time with you, not only in the office but in fitness department as well. I am also grateful to Hakan, Bastian, Oscar, Tang, Evelin, Vasily, Tunde and Yakob who joined us later and had a really great time with them. I wish you all the best for your success in your PhDs and beyond. Thanks are extended to all other friends at ITC, especially, Omer, Abebe, Manuel, Gustavo, Eduardo and Alby. I will miss all the fun we had together, be that in the workshops, sports, parties, coffee table or elsewhere. Thanks are further extended vii Acknowledgements to all the staff at ITC and ITC hotel, especially, Loes Colenbrander, Benno, Theresa, Ginie and Marion for the support during my time at ITC. I am grateful to my friends and kitchen buddies on 7th floor at ITC hotel for their company especially, Ana, Marisol, Riddie, Siddie, Diana, Sana, Sweta and Lucy. Thanks you all for introducing me the the broad spectrum of food from around the world, especially 'Mansaf'. It would be unfair not to acknowledge Pakistani friends who made me feel at home, especially, Dr. Saleem Ullah, Rehmat Ullah, Nayyer and Sajid. I still remember the day when you guys received me at the train station and introduced me to the unknown little world of Enschede. I am also grateful to PS...

show abstract

Effects of realistic topography on the ground motion of the Colombian Andes – A case study at the Aburrá Valley, Antioquia

Cited by 25 publications

References 43 publications

The impact of topography on seismic amplification during the 2005 Kashmir earthquake

The impact of topography on seismic amplification during the 2005 Kashmir earthquake

Integration of 3D large‐scale earthquake simulations into the assessment of the seismic risk of Bogota, Colombia

Is there a safe spot?

Contact Info

Product

Resources

About