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Time sequence and the recurrence models for large earthquakes along the Nankai Trough revisited
Author(s) -
Kumagai Hiroyuki
Publication year - 1996
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 - 10.1029/96gl01037
Subject(s) - sequence (biology) , geology , trough (economics) , seismology , slip (aerodynamics) , time sequence , algorithm , computer science , engineering , genetics , aerospace engineering , biology , economics , macroeconomics
It is suggested that time sequence of earthquakes can be explained by the time‐predictable recurrence model rather than the slip‐predictable recurrence model. However, the reliability of the model depends primarily on data accuracy; missing large events seriously affect the evaluation of the models. Although the time‐predictable model can explain the recent three large events along the Nankai trough back to A.D. 1707, there was serious discrepancy when the model was applied to older events. Recent archeological studies have discovered new events along the trough missed in historical documents. I found that with the addition of the archeologically discovered new events the recurrence models can be applied to older events, and that the time sequence including these new events suggests a time‐predictable recurrence pattern over a 1000‐year interval.