A series of small earthquakes occurred in the area of Nazko Cone beginning on October 10, 2007. Most of these earthquakes were magnitude 1.0 or less; some as strong as magnitude 3.2 were centered 25 kilometers below the surface. The cause of these earthquakes is believed to be the rising of molten magma because there are no faults or tectonic plate boundaries. The source of this magma is from the Anahim hotspot and continues to this day.