According to Erin Ellis of the Observer a federal research scientist with the Geological Survey of Canada has claimed that his research proves that the largest earthquake ever detected in British Columbia’s northeastern shale gas region was caused by the fracking activities of PETRONAS subsidiary, Progress Energy Inc. This was a 4.6 magnitude quake that took place in the northern Montney Play of British Columbia in August 2015. The study analyzed the seismic activity its connection with fluid injection hydraulic fracturing being deployed in the region. Spatial and temporal correlation of seismic activity with the fluid injection in the region appears to have revealed that these events are better correlated with hydraulic fracturing than other types of injection. In other words the earthquake that was felt at the surface of the earth near the town of Fort St. John, was the direct result of liquids being pumped into underground rock formations under high pressure to extract natural gas.