Published

2022-02-07

Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period

Clasificación de sitio de la Red de Acelerógrafos de Costa Rica basada en mediciones de VS30 y en el período fundamental

DOI:

https://doi.org/10.15446/esrj.v25n4.93927

Keywords:

Site classification, Site fundamental period, Shear-wave velocity, Costa Rica, HVSR, Vs30 (en)
Clasificación de sitio; período fundamental de sitio; velocidad promedio de la onda de corte; Costa Rica; relaciones horizontales/verticales; Vs30 (es)

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Authors

  • Luis A. Pinzón Universitat Politècnica de Catalunya
  • Diego A. Hidalgo-Leiva Universidad de Costa Rica
  • Aarón Moya-Fernández Universidad de Costa Rica
  • Victor Schmidt-Díaz Universidad de Costa Rica
  • Luis G. Pujades Universitat Politècnica de Catalunya

In this paper, a new seismic site classification for the Costa Rican Strong-Motion Network (CRSMN) is proposed. The soil profile classification of the Costa Rican Seismic Code based on the average shear-wave velocity of the top 30 m (VS30) is used as a reference. The site fundamental period (Tf) is included as a parameter to complement the existing characterization. For this, the VS30 measurements from 52 accelerometric stations are related to the site fundamental period obtained through horizontal-to-vertical spectral ratios (HVSR) using ground motion records from the Costa Rican Strong-Motion Database. The H/V ratios are estimated with 5% damped acceleration response spectra and with traditional Fourier amplitude spectra from the S-wave window. From the relation between VS30 and Tf, different ranges of Tf are assigned to the existing soil profile classification and a graph with three-lines and four-areas is proposed to classify the stations of the CRSMN.

En este artículo, se propone una nueva clasificación de sitio para la Red de Acelerógrafos de Costa Rica (RACR). Se utiliza como referencia la clasificación de sitio del Código Sísmico de Costa Rica basada en la velocidad promedio de la onda de corte de los 30 m superiores (VS30). El período fundamental del sitio (Tf) se incluye como parámetro para complementar la caracterización existente. Para ello, las mediciones de VS30 de 52 estaciones acelerométricas se relacionan con el período fundamental del sitio, este obtenido a partir de relaciones espectrales H/V utilizando registros de la Base de Datos de Movimiento Fuerte de Costa Rica. Las relaciones H/V se estiman con espectros de respuesta de aceleración con 5% de amortiguamiento y con espectros de amplitud de Fourier tradicionales obtenidos de la ventana de ondas S. A partir de la relación entre VS30 y Tf, fueron asignados diferentes rangos de Tf a la clasificación de perfil de suelo existente y se propone un gráfico con tres líneas y cuatro áreas para clasificar las estaciones de la RACR.

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How to Cite

APA

Pinzón, L. A., Hidalgo-Leiva, D. A., Moya-Fernández , A., Schmidt-Díaz, V. and Pujades, L. G. (2022). Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period. Earth Sciences Research Journal, 25(4), 383–389. https://doi.org/10.15446/esrj.v25n4.93927

ACM

[1]
Pinzón, L.A., Hidalgo-Leiva, D.A., Moya-Fernández , A., Schmidt-Díaz, V. and Pujades, L.G. 2022. Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period. Earth Sciences Research Journal. 25, 4 (Feb. 2022), 383–389. DOI:https://doi.org/10.15446/esrj.v25n4.93927.

ACS

(1)
Pinzón, L. A.; Hidalgo-Leiva, D. A.; Moya-Fernández , A.; Schmidt-Díaz, V.; Pujades, L. G. Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period. Earth sci. res. j. 2022, 25, 383-389.

ABNT

PINZÓN, L. A.; HIDALGO-LEIVA, D. A.; MOYA-FERNÁNDEZ , A.; SCHMIDT-DÍAZ, V.; PUJADES, L. G. Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period. Earth Sciences Research Journal, [S. l.], v. 25, n. 4, p. 383–389, 2022. DOI: 10.15446/esrj.v25n4.93927. Disponível em: https://revistas.unal.edu.co/index.php/esrj/article/view/93927. Acesso em: 29 jan. 2025.

Chicago

Pinzón, Luis A., Diego A. Hidalgo-Leiva, Aarón Moya-Fernández, Victor Schmidt-Díaz, and Luis G. Pujades. 2022. “Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period”. Earth Sciences Research Journal 25 (4):383-89. https://doi.org/10.15446/esrj.v25n4.93927.

Harvard

Pinzón, L. A., Hidalgo-Leiva, D. A., Moya-Fernández , A., Schmidt-Díaz, V. and Pujades, L. G. (2022) “Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period”, Earth Sciences Research Journal, 25(4), pp. 383–389. doi: 10.15446/esrj.v25n4.93927.

IEEE

[1]
L. A. Pinzón, D. A. Hidalgo-Leiva, A. Moya-Fernández, V. Schmidt-Díaz, and L. G. Pujades, “Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period”, Earth sci. res. j., vol. 25, no. 4, pp. 383–389, Feb. 2022.

MLA

Pinzón, L. A., D. A. Hidalgo-Leiva, A. Moya-Fernández, V. Schmidt-Díaz, and L. G. Pujades. “Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period”. Earth Sciences Research Journal, vol. 25, no. 4, Feb. 2022, pp. 383-9, doi:10.15446/esrj.v25n4.93927.

Turabian

Pinzón, Luis A., Diego A. Hidalgo-Leiva, Aarón Moya-Fernández, Victor Schmidt-Díaz, and Luis G. Pujades. “Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period”. Earth Sciences Research Journal 25, no. 4 (February 7, 2022): 383–389. Accessed January 29, 2025. https://revistas.unal.edu.co/index.php/esrj/article/view/93927.

Vancouver

1.
Pinzón LA, Hidalgo-Leiva DA, Moya-Fernández A, Schmidt-Díaz V, Pujades LG. Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period. Earth sci. res. j. [Internet]. 2022 Feb. 7 [cited 2025 Jan. 29];25(4):383-9. Available from: https://revistas.unal.edu.co/index.php/esrj/article/view/93927

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CrossRef citations3

1. Luis A. Pinzón, Diego A. Hidalgo-Leiva, Rodrigo E. Alva, Miguel A. Mánica, Luis G. Pujades. (2023). Correlation between seismic intensity measures and engineering demand parameters of reinforced concrete frame buildings through nonlinear time history analysis. Structures, 57, p.105276. https://doi.org/10.1016/j.istruc.2023.105276.

2. Diego A. Hidalgo-Leiva, Lepolt Linkimer, Ivonne G. Arroyo, Mario Arroyo-Solórzano, Rosey Piedra, Alvaro Climent, Víctor Schmidt Díaz, Luis Carlos Esquivel, Guillermo E. Alvarado, Rolando Castillo, Marco E. Carranza-Morales, Laura Cerdas-Guntanis, Jimena Escalante-Meza, Sergio Lobo, María José Rodríguez, Wilfredo Rojas. (2023). The 2022 Seismic Hazard Model for Costa Rica. Bulletin of the Seismological Society of America, 113(1), p.23. https://doi.org/10.1785/0120220119.

3. Falak Zahoor, K. Seshagiri Rao, Bashir Ahmed Mir, Neelima Satyam. (2023). Geophysical surveys in the Kashmir valley (J&K Himalayas) part II: Anomalous seismic site-effects and exploration of alternative site classification schemes. Soil Dynamics and Earthquake Engineering, 174, p.108185. https://doi.org/10.1016/j.soildyn.2023.108185.

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