Ground Motion Prediction Equations for a Early Warning System Earthquake

Authors

  • Giannina Sancy Universidad Diego Portales

Keywords:

Ground Motion Prediction Equations, Seismic attenuation, Seismic gap, Local sites effects, Early Earthquake Warning

Abstract

Since Chile is constantly exposed to mega-earthquakes, this research developed Ground Motion Prediction Equations (GMPEs) carried out with help from the Centro Sismológico Nacional (CSN). The predictive seismic amplitude curves were generated from the seismic gap that exist in Chile. This zone extends from Arica with latitude of 18S to the north of the península of Mejillones at a latitude of 23S.

All this motivated the implementation of the japanese Early Earthquake Warning System (EEWS) allowing in real time and in a simplified way based on predictions of magnitude, the estimation of seismic intensity for interplate earthquakes.

Reliable coefficients were obtained for a range ranging from 4,0Mw to 8,1Mw. Since these predictions are close enough to actual data, according to the analysis of variability it is posible to calculate thresholds of seismic intensity, and based on those calculations develop courses of action for earthquake-prone communities.

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Published

2019-04-29

How to Cite

Sancy, G. (2019). Ground Motion Prediction Equations for a Early Warning System Earthquake. Journal of Construction and Civil Engineering, 9(1), 41–52. Retrieved from https://revistas.ufro.cl/ojs/index.php/rioc/article/view/2084

Issue

Vol. 9 No. 1 (2019)

Section

Articles

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