TY - JOUR
T1 - Parameters of Higuchi's method to characterize primary waves in some seismograms from the Mexican subduction zone
AU - Gálvez-Coyt, Gonzalo
AU - Muñoz-Diosdado, Alejandro
AU - Peralta, José A.
AU - Balderas-López, José A.
AU - Angulo-Brown, Fernando
N1 - Funding Information:
A c k n o w l e d g m e n t s . We thank the Secretary of Research and Post-graduate, the Stimulus Program to the Performance of Researchers and the Commission for Operation and Development of Academic Activities of the National Polytechnic Institute for partial support of this work.
PY - 2012/6
Y1 - 2012/6
N2 - Higuchi's method is a procedure that, if applied appropriately, can determine in a reliable way the fractal dimension D of time series; this fractal dimension permits to characterize the degree of correlation of the series. However, when analyzing some time series with Higuchi's method, there are oscillations at the right-hand side of the graph, which can cause a mistaken determination of the fractal dimension. In this work, an appropriate explanation is given to this type of behaviour. Using the seismogram as a time series and the properties of the P and S waves, it is possible to use the properties of Higuchi's method to previously detect the arrival of the earthquake shacking stage, some seconds in advance, approximately 30-35 s in the case of Mexico City. Thus, we propose the Higuchi's method to characterize and detect the P waves in order to estimate the strength of the forthcoming S waves.
AB - Higuchi's method is a procedure that, if applied appropriately, can determine in a reliable way the fractal dimension D of time series; this fractal dimension permits to characterize the degree of correlation of the series. However, when analyzing some time series with Higuchi's method, there are oscillations at the right-hand side of the graph, which can cause a mistaken determination of the fractal dimension. In this work, an appropriate explanation is given to this type of behaviour. Using the seismogram as a time series and the properties of the P and S waves, it is possible to use the properties of Higuchi's method to previously detect the arrival of the earthquake shacking stage, some seconds in advance, approximately 30-35 s in the case of Mexico City. Thus, we propose the Higuchi's method to characterize and detect the P waves in order to estimate the strength of the forthcoming S waves.
KW - Higuchi's method
KW - earthquake early warning
KW - seismograms
KW - time series
UR - http://www.scopus.com/inward/record.url?scp=84860487716&partnerID=8YFLogxK
U2 - 10.2478/s11600-012-0033-9
DO - 10.2478/s11600-012-0033-9
M3 - Artículo
SN - 1895-6572
VL - 60
SP - 910
EP - 927
JO - Acta Geophysica
JF - Acta Geophysica
IS - 3
ER -