The Weiyuan Shale Gas Field (WSGF)

../../../_images/wy_bg_Yang2020.png — The Weiyuan Shale Gas Field. (Courtesy Yang et al., 2020)

The WSGF located in the southern Sichuan Basin with intense seismicity due to hydraulic fracturing since mid-2015. By far, 8 \(M\geq 4.0\) events with maximum magnitude of \(M_w5.0\) occurred and lead to severe damge to local residents and facilities. However, the triggering mechanism of these damaging earthquakes remain elusive, exerting challenges to earthquake hazard mitigation.