Network of Recurrent events - A case study of Japan

TL;DR

This paper applies a seismic network construction method based on record-breaking events to Japan's earthquake data, confirming its robustness and revealing regional heterogeneities in seismic activity.

Contribution

It demonstrates the applicability of a previously proposed seismic network method to Japan, highlighting its ability to detect regional heterogeneities in seismicity.

Findings

Method successfully applied to Japan's earthquake catalog

Detected heterogeneities in seismic activity

Estimated rupture length and scaling with magnitude

Abstract

A recently proposed method of constructing seismic networks from 'record breaking events' from the earthquake catalog of California (Phy. Rev. E, 77 6,066104, 2008) was successfull in establishing causal features to seismicity and arrive at estimates for rupture length and its scaling with magnitude. The results of our implementation of this procedure on the earthquake catalog of Japan establishes the robustness of the procedure. Additionally, we find that the temporal distributions are able to detect heterogeneties in the seismicity of the region.