Abstract

This paper describes the application to New Zealand data of two algorithms recently made available through the IASPEI software programme. These are the M8 algorithm, which has the objective of identifying times and regions of heightened probability of the occurrence of a large damaging earthquake, and the Lin‐Lin algorithm, which has the objective of identifying linear causal relationships between one sequence of events and another. The M8 algorithm is applied to the New Zealand events listed in the NEIC catalogue, and to shallow, deep, and combined events listed in the New Zealand local catalogue. The most notable feature of the M8 analysis is the generation of TIPS (times of increased probability) for 1993 onward, for central New Zealand regions from both the New Zealand and NEIC catalogues. No short‐term linear causal relationships between New Zealand deep and shallow earthquakes are detected by the Lin‐Lin algorithm. The paper includes brief discussions of the catalogues, of the background and structure of the algorithms used, and of the results obtained.

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