NON-UNIFORM SCALING BEHAVIOR IN SELF-POTENTIAL EARTHQUAKE-RELATED SIGNALS

被引:3
作者
Telesca, Luciano [1 ]
Lovallo, Michele [1 ]
Ramirez-Rojas, Alejandro [2 ]
Angulo-Brown, Fernando [3 ]
机构
[1] CNR, Ist Metodol Anal Ambientale, I-85050 Tito, PZ, Italy
[2] Univ Autonoma Metropolitana, Dept Ciencias Basicas, Mexico City 02200, DF, Mexico
[3] Inst Politecn Nacl, Escuela Super Fis & Matemat, Dept Fis, Mexico City 07738, DF, Mexico
来源
FLUCTUATION AND NOISE LETTERS | 2008年 / 8卷 / 3-4期
关键词
Earthquakes; detrended fluctuation analysis; scaling; self-potential; Mexico;
D O I
10.1142/S0219477508005100
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The scaling properties of the time dynamics of self-potential data (in the frequency range between 0 and 0.125Hz) observed in 1995 at Acapulco station in Mexico were investigated. On the basis of detrended fluctuation analysis (DFA), which is a powerful method to detect scaling in nonstationary time series, deviations from uniform power-law scaling were identified and quantified. Our results suggest that an evident non-uniform scaling behavior in self-potential data could be related to the occurrence on September 14, 1995 of the strongest earthquake. These first results could be useful in the framework of earthquake prediction studies.
引用
收藏
页码:L261 / L267
页数:7
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