2010 Mentawai Tsunami Earthquake Simulations

This dataset includes rupture models and associated waveforms of the 2010 M7.8 Mentawai, Indonesia tsunami earthquake. The simulations were generated using codes from https://github.com/UO-Geophysics/MudPy.

Test_simulations contains simulations for the initial tests individually varying the rise time, rupture velocity (Vrupt) and stress-drop (Figs. 5-7 in the accompanying publication).

GPR_simulations contains simulations for the Gaussian process regression analysis. These are separated into strong-motion waveforms for the 1D analysis with varying stress drop and HR-GNSS waveforms for the 2D analysis with varying rise time and Vrupt (Fig. 8 in the accompanying publication).

TsE_simulations contains the final datatset generated using recomended tsunami earthquake parameters (Table 1 and Fig. 9 in the accompanying publication). 

For the GNSS waveforms, files within GNSS_raw are the raw GNSS waveforms without noise, and files within GNSS_noisy are the raw waveforms with real noise added. No noise was added to the strong motion waveforms.

The .log and .rupt files within the /ruptures/ subdirectories are standard files generated from MudPy. The .log files are summaries of each rupture, and the .rupt files are the full rupture kinematics of each rupture including slip information for the individual subfaults.

Details on how the ruptures and data were generated are available in the following publication:

Nye, T. A., Sahakian, V. J., & Melgar, D. (2024). Validation of tsunami earthquake ground-motion simulations using near-field observational data: Rupture parameter constraints from the 2010 Mentawai event. Seismica, 3(2). https://doi.org/10.26443/seismica.v3i2.1152

*This work was supported by NASA ROSES grant 80NSSC21K0841 and USGS grants G19AP00071 and G23AP00048.