Figure S4. Uncertainty test cases and their BMMC inversion results. a) Uncertainties for each of the three cases. Case 1 uses uncertainties from bootstrap resampling of the phase velocity results and repeated inversions with the bootstrap samples. Case 2 uses a fixed 25 m/s uncertainty at all periods, which is the case presented in the main text. Case 3 uses a fixed 50 m/s uncertainty range. b) Misfit map and Vs cross section for case 1. c) same as b but for case 2. b) same as c but for case 3. Dotted lines in misfit maps and Vs cross section show the 1.23 Ma caldera’s ring fracture.