Tectonic Setting
Seismic activity is common in the Bachu and the surrounding area. It occurs as a result of movement on fault systems that bound the Tien Shan mountain belt. The Tien Shan is actively evolving, as a result of far-field stresses associated with the collision of India and Eurasia.
According to the moment tensor solution, the earthquake occurred on a thrust fault that dips 6° to the north, and strikes approximately east-west. Such a gentle dip angle implies that the earthquake may have occurred on or just above the basal detachment of the neighbouring fold-thrust belts. There is no evidence of oblique-slip or strike-slip movement.
Read more about this topic: 2003 Bachu Earthquake
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