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Earth, Planets and Space
Fig. 7. | Earth, Planets and Space

Fig. 7.

From: Contemporary horizontal crustal movement estimation for northwestern Vietnam inferred from repeated GPS measurements

Fig. 7.

GPS velocity profiles (of the zone shown in Fig. 2) across the SLF and DRF. (top) Velocity component in N50°W direction plotted along the same direction, which is the fault-parallel component. The black solid line corresponds to the creeping case (zero locking depth) with slip rate of ~1.0 mm/yr. The dashed lines are the best estimates of locking depths (for SLF 1.5 km and DRF 1.3 km). The dot-dashed lines present the deeper locking cases (+1 σ deviation) of SLF and DRF with depths of 7–8 km. The estimated model parameters for the SLF and DRF are presented in Table 4. (bottom) The velocity component in N40° E direction is plotted along the profile. It is the fault-normal component with positive extension. Black and white squares indicate sites with long and short observation intervals, respectively (Table 1). Error bars are for the 95% confidence level. The vertical dashed lines delineate the location of the SLF and the DRF.

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