S-velocity structure in the southern Simeulue Island from inversion of teleseismic receiver functions

We invert receiver functions to detetruine the velocity structure beneath two seismic stations in the southern Simeulue Island. We compute receiver functions from teleseismic events using the time domain deconvolution technique. The S-velocity profiles are obtained by inverting receiver functions using a linearized-iterative inversion with an AK-135 for the initial model. The result shows that the island is covered by sediment layer at the near surface. The inversion results also indicate that the crustal thickness beneath the Island is around 22-24 km depth, agreeing well with the crustal model obtained from the previous studies.