Fig. 4From: Tectonic effect for establishing a semi-dynamic datum in Southwest TaiwanHorizontal velocity model derived from the block model in SW Taiwan. Black vectors are observations and the 95Â % confidence error ellipse is shown at the tip of each velocity vector. Green vectors are derived from the block model. Red lines are locations of active faults. Thick red lines are the active faults emphasized in this study. Black lines denote the block boundariesBack to article page