Padang lies on one of the world's most active faultlines, which was responsible for the devastating Indian Ocean tsunami that killed more than 220, 000 people on Boxing Day 2004.
Along some active faults we can see clear alignments of microearthquakes.
A Discussion on Shallow Seismic Reflection Noise Elimination during Urban Active Fault Prospecting
So the crustal stability of NorthwestYunnan is determined dominatingly by the active fault and seism.
This paper studies the active faults and seismic safety problems in the Fujian coastal harbour construction.