Additional file 1 of Source rupture process of the MW 6.2 earthquake in the Noto Peninsula, central Japan, on May 5, 2023

Additional file 1: Fig. S1. Bedrock depth and vertical cross section of JIVSM (Koketsu et al. 2012). (Top) Map of bedrock depth corresponding to the top depth at VS = 3.2 km/s in the FDM model space. The open star indicates the epicenter of the MW 6.2 earthquake on May 5, 2023, located by JMA. (Bottom) Vertical cross section of the S-wave velocity model of the JIVSM along lines A–A’. The open star indicates the hypocenter of the MW 6.2 earthquake on May 5, 2023, located by the JMA. Fig. S2. Comparison of simulated Green’s functions between forward (black) and reciprocal (red) simulations. Fig. S3. Comparison of synthetic velocity waveforms for three cases with different strike and dip angles (red, green, and blue) and observed velocity waveforms (black) in 0.05–1.0 Hz. Amplitudes were normalized to the maximum observed amplitude of each station. The maximum observed amplitude is shown above each trace in units of cm/s.