seismic-networks-julia-dev

DEVELOPMENT

This project aims to describe Seismic Regions using elements of Complex Networks

This is an enhanced Julia port of the original project done in Python

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Exploratory Data Analysis

For an extensive review of the data collection and cleaning process, as well as graphical exploration of the data, codes and figures are presented in the complementary project: https://github.com/gabipana7/seismic-exploratory-data-analysis

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Network Generation

First of all networks are generated and their connectivity distribution is analyzed.

This is done with networks_parameter_dependency.jl

Networks with scale-free connectivity distribution

Netwoks and Motifs Generation

With networks_generator.jl networks are generated for the best cube sizes, obtained from the parameter dependency.

With motifs_generator.jl triangle and tetrahedron motifs are generated for these networks, with a cutoff for micro-earthquakes (data is trimmed to satisfy that magnitude > 2).

This computation is done with a slightly adapted Python version of the Nemomap software (https://github.com/zicanl/NemoMapPy)

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Motifs Analysis

With motifs_analysis.jl the motifs are analyzed as such:

Triangles

• the area of each individual motif is calculated
• for each individual motif, the total (and mean) energy released by the earthquakes that occured in each of its nodes is computed
• for each individual motif, the area is weighted by its total(mean) energy
• the distribution of the results is computed and analyzed with the Python Powerlaw package

Tetrahedrons

• the volume of each individual motif is calculated
• for each individual motif, the total (and mean) energy released by the earthquakes that occured in each of its nodes is computed
• for each individual motif, the volume is weighted by its total(mean) energy
• the distribution of the results is computed and analyzed with the Python Powerlaw package

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This repository represents the toolbox support of our scientific article available at: https://www.sciencedirect.com/science/article/abs/pii/S0378437123008567

Cite as:

Gabriel Tiberiu Pană, Alexandru Nicolin-Żaczek, Motifs in earthquake networks: Romania, Italy, United States of America, and Japan, Physica A: Statistical Mechanics and its Applications, Volume 632, Part 1, 2023, 129301, ISSN 0378-4371, https://doi.org/10.1016/j.physa.2023.129301