Answer: Vancouver Island
Notes: A major new fault line called the XEOLXELEK-Elk Lake fault (XELF) has been discovered running below Canada's Vancouver Island. This 45 mile (75 km) long fault poses a substantial earthquake and tsunami risk to around 400,000 residents in Victoria region and cities along US west coast as well. Its last quake occured between 4,700-2,300 years ago with an estimated magnitude of 6.1-7.6. The identification of this previously unknown seismic threat fault highlights advancements in geological surveying and underlines the need for updated disaster mitigation models.
