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Correlation between the phase of the moon and the occurrences of microearthquakes in the Tamba region through point‐process modeling
Author(s) -
Iwata Takaki,
Katao Hiroshi
Publication year - 2006
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2005gl025510
Subject(s) - akaike information criterion , seismology , geology , correlation , induced seismicity , geodesy , statistics , mathematics , geometry
We study the correlation between the phase of the moon and the occurrence of microearthquakes in the Tamba region, close to the fault of the 1995 Kobe earthquake. The existence of the correlation during the two‐year period following the Kobe earthquake was suggested in a previous study. First, in this study, we investigate the statistical significance of such correlation. Using point‐process modeling and AIC (Akaike Information Criterion), we confirm that the existence of the correlation is statistically significant. Second, we investigate the temporal variation of the correlation during the four‐year period following the Kobe earthquake. The result of the second analysis indicates that the correlation is strongest just after the Kobe earthquake and that it then becomes weaker year by year.