Figure S12. Sub-event sensitivities and E-W component waveform decompositions of the nearby four high-GPS stations. (a) Map view of the six sub-events and high-rate GPS waveform fitting where filtered data is shown in black, synthetics are shown in red and cross-correlations coefficients (CC) are indicated alongside. Each GPS station is mostly sensitive to the subevents connected with straight lines to the station. (b) Decomposed sub-event synthetics (red waveforms of each column) show dominant contributions to different GPS stations and represent their strong necessity in explaining the data (black). Station name, epicenter distance and azimuths are listed on the left.