Relocation and analysis of the 2007 Nechako, B.C., seismic swarm: evidence for magmatic intrusion in the lower crust

Jesse A. Hutchinson
On October 9th, 2007, a seismic swarm, known as the Nechako swarm, began in south-central British Columbia, approximately 20 kilometers west of the Nazko polygenetic cinder cone. After lasting for well over a month, seismic activity tapered off by November 21st, 2007. This study analyzes data from several temporary broadband seismometers deployed by the Geological Survey of Canada near the epicentral locations of initial events from the swarm. Over 4400 events were observed during this...
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