Simulated Earthquake Moment Rate Functions in Wang & Houston (2026) - Evolution of scaled energy during earthquake ruptures

This repository accompanies Wang & Houston (2026), "Evolution of scaled energy during earthquake ruptures". It contains synthetic earthquake moment rate functions (MRFs) from dynamic rupture simulations with heterogeneous prestress, together with the analysis and simulation code used to generate and analyze them. Each MRF is a plain-text .dat file with two columns (time and moment rate). The simulations explore variability in stress heterogeneity and frictional parameters, producing earthquake-like source time functions suitable for statistical, spectral, and scaling analyses. Derived figures are omitted, and all results can be regenerated from the raw data and code.

Contents (v2):

• Crack-like ensemble (simMRF_wanghouston.tar.zst): ~16,000 MRFs from crack-like ruptures, varying the Hurst exponent, characteristic slip distance, and stress amplitude.
• Pulse-like ensemble (pulse_ensemble_MUd0.525.tar.gz): self-healing pulse-like ruptures (9,600 MRFs) organized by varied slip-weakening distance, Hurst exponent, and prestress amplitude.
• IA2005 nested hierarchical asperity ensemble (ia2005_nested_asperity.tar.gz): MRFs from the multi-scale stochastic dynamic rupture model of Ide & Aochi (2005) with nested asperities, a separate model family from the SBIEM crack-like and pulse-like ensembles.
• Code (code.tar.gz): Python analysis code for the MRFs and scaled-energy evolution, the MATLAB SBIEM dynamic-rupture simulation scripts, and a modified IA2005 stochastic source code. See the README inside the archive for layout and upstream attribution.
• README_simMRF_dataset.md: dataset and file-format documentation.

Plot files (.png, .pdf) are removed to reduce size and are available upon request.

Please cite the associated publication and this Zenodo record if you use the dataset or code.

• Wang, B., & Houston, H. (2026). Evolution of scaled energy during earthquake ruptures. J. Geophys. Res.
• Wang, B., & Houston, H. (2026). Zenodo repository for "Evolution of scaled energy during earthquake ruptures".

For any questions, contact Binhao Wang (binhaowa@usc.edu)