Determination of the fault plane and rupture size of the 2013 Santa Cruz earthquake, Bolivia, 5.2 Mw, by relative location of the aftershocks

Rivadeneyra-Vera, Carolina; Assumpção, Marcelo; Minaya, E.; Aliaga, Percy; Avila, G.

doi:10.1016/j.jsames.2016.06.002

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…The residuals from the absolute location of the reference earthquake in the series are used as station corrections for the targets, and a new location and origin time are determined. This technique is widely used and has been successfully applied in previous studies (Assumpção et al, 2016); (Ciardelli and Assumpção, 2019); (Rivadeneyra-Vera et al, 2016); (Waldhauser, 2000).…”

Section: Station Correction Methodsmentioning

confidence: 99%

“…In contrast, the P-wave experiences a much smaller shift of only about 1.0 second. A significant number of studies have taking advantage of these characteristics, such as Ekström (2006) , Barros et al (2009), Michael Cleveland and Ammon (2013), Rivadeneyra-Vera et al (2016), Assumpção et al (2016), Ciardelli and Assumpção (2019).…”

Section: Rayleigh Time Shift or Sinusoidal Time Shift Methodsmentioning

confidence: 99%

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Relative Location of Regional Epicenters in Brazil and Source Parameters

Nogueira

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Utilizamos a análise de correlação cruzada das ondas P, S e Lg para localizar com precisão as réplicas de um terremoto em relação a um evento de referência. Ao analisar a distribuição das réplicas em diversos casos, pudemos inferir parâmetros da fonte, como o plano de falha do terremoto principal, estimar o stress drop e fornecer restrições para a determinação do mecanismo focal. A metodologia envolve duas abordagens que requerem um sismo referência e um alvo, cujos sinais são correlacionados a fim de obter os tempos de percurso relativos para uma estação. Essa metodologia auxiliou na estimativa das características da fonte de quatro sequências de sismos na região intraplaca brasileira. De forma geral, todos os eventos foram relocados próximos ao evento referência. Especificamente, os resultados mostram um padrão de falha NW-SE e um mecanismo focal reverso para as

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Section: Station Correction Methodsmentioning

confidence: 99%

Section: Rayleigh Time Shift or Sinusoidal Time Shift Methodsmentioning

confidence: 99%

Relative Location of Regional Epicenters in Brazil and Source Parameters

Nogueira

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Focal mechanism of the 5.1Mw 2014 Lloja earthquake, Bolivia: Probing the transition between extensional stresses of the central Altiplano and compressional stresses of the sub-Andes

Fernandez

Assumpção

Nieto

et al. 2019

Journal of South American Earth Sciences

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Handling Dataset with Geophysical and Geological Variables on the Bolivian Andes by the GMT Scripts

Lemenkova

2022

Data

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In this paper, an integrated mapping of the georeferenced data is presented using the QGIS and GMT scripting tool set. The study area encompasses the Bolivian Andes, South America, notable for complex geophysical and geological parameters and high seismicity. A data integration was performed for a detailed analysis of the geophysical and geological setting. The data included the raster and vector datasets captured from the open sources: the IRIS seismic data (2015 to 2021), geophysical data from satellite-derived gravity grids based on CryoSat, topographic GEBCO data, geoid undulation data from EGM-2008, and geological georeferences’ vector data from the USGS. The techniques of data processing included quantitative and qualitative evaluation of the seismicity and geophysical setting in Bolivia. The result includes a series of thematic maps on the Bolivian Andes. Based on the data analysis, the western region was identified as the most seismically endangered area in Bolivia with a high risk of earthquake hazards in Cordillera Occidental, followed by Altiplano and Cordillera Real. The earthquake magnitude here ranges from 1.8 to 7.6. The data analysis shows a tight correlation between the gravity, geophysics, and topography in the Bolivian Andes. The cartographic scripts used for processing data in GMT are available in the author’s public GitHub repository in open-access with the provided link. The utility of scripting cartographic techniques for geophysical and topographic data processing combined with GIS spatial evaluation of the geological data supported automated mapping, which has applicability for risk assessment and geological hazard mapping of the Bolivian Andes, South America.

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Determination of the fault plane and rupture size of the 2013 Santa Cruz earthquake, Bolivia, 5.2 Mw, by relative location of the aftershocks

Cited by 3 publications

References 23 publications

Relative Location of Regional Epicenters in Brazil and Source Parameters

Relative Location of Regional Epicenters in Brazil and Source Parameters

Focal mechanism of the 5.1Mw 2014 Lloja earthquake, Bolivia: Probing the transition between extensional stresses of the central Altiplano and compressional stresses of the sub-Andes

Handling Dataset with Geophysical and Geological Variables on the Bolivian Andes by the GMT Scripts

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