Hydraulic fracturing (HF) is a new way to extract hydrocarbons for our energy-demanding society . However, there  has been some reports of earthquake hazards in spatial and temporal proximity to the unconventional gas extraction. 

One of the largest HF related events occurred  in the Sichuan Basin, China, with multiple events above magnitude 5. To address the mechanism of the inducing earthquake by the anthropogenic activities, we analyzed the inducing mechanism of the earthquake in particular the Weiyuan shale gas field, located at the central of Sichuan Basin. A high-resolution spatial-temporal evolution of the seismicity is constructed using the machine learning method and the pattern has shown multiple pathways possible from the HF activites.