In the Coast Mountains of western British Columbia, an anomalous concentration of seismicityexists near the town of Bella Coola. This location is situated near the intersection ofthe Coast Shear Zone, a major NW-SE trending Eocene-age shear zone that accommodateddeformation between the Pacific and North America plates, with the Anahim Volcanic Belt, an E-W trending zone of volcanic features that decrease in age to the east. A sequence ofearthquakes in 1940 caused minor shaking in the town of Bella Coola, but little is known aboutthe events due to the lack of instrumentation in the region at that time. From multipleobservations we argue that the majority of these events are not associated with surficial processes. To augment the existing Geological Survey of Canada seismicitycatalog, we apply an automatic detection and location algorithm to both permanent CanadianNational Seismic Network stations and temporary stations from the 2005-2006 BATHOLITHSdeployment, resulting in an additional 433 events in the region with at least 3 paired P and Sphase picks. Double-difference relocation reveals several small-scale linear strands subparallelto the Coast Shear Zone, and three clusters of events striking at a high angle to theCSZ that occurred as swarms in 2015 and 2017. First-motion focal mechanismsexhibit extensional and strike-slip faulting. We hypothesize that interaction of the AnahimVolcanic Belt and Coast Shear Zone has weakened lithosphere in this regionleading to concentration current-day strain localization and high heat flow that manifestseismicity including swarm-like activity.