British Columbia is susceptible to hazards such as tsunamis, volcanoes, earthquakes, landslides, snow avalanches, and seasonal floods, but not all of them are as common. Out of all these, earthquakes are the most common ones, with more than 1,200 earthquakes occurring each year.
That said, they aren’t catastrophic in nature, and even if you happen to be there for one, it shouldn’t disrupt your itinerary in any way. The ones that may cause serious damage, however, are said to only occur once a decade on average.