Seismicity in Our Prairie Province
Alberta experiences relatively few earthquakes, particularly when compared with areas surrounding the Pacific Ocean. The earthquakes in Alberta are minor to moderate, and, to our knowledge, no one has recorded damage from an earthquake in Alberta. The largest magnitude earthquake documented in Alberta was a natural event, local magnitude (ML) 5.4, near the Alberta–British Columbia border, 100 km northwest of Grande Prairie (April 2001). The frequency of earthquakes in the province began increasing in 2011, mostly due to human-activity induced earthquakes related to oil and gas exploration and production such as hydraulic fracturing and wastewater disposal.