A powerful earthquake struck off the Pacific coast of Canada on Thursday morning, sending tremors across the region. The initial quake, measured at 6.6 magnitude by the U.S. Geological Survey (USGS).

A preliminary magnitude 6.6 earthquake has been detected near the Haida Gwaii region off the coast of British Columbia, Canada.

The earthquake triggered a tsunami warning for the entire West Coast of the United States and Canada, from California to Alaska. However, the National Tsunami Warning Center later announced that no tsunami was expected.

The quake was felt widely across British Columbia, with reports of shaking in Vancouver, Victoria, and other nearby cities. Residents described the shaking as lasting several seconds and feeling like a rolling motion. There were no immediate reports of major damage or injuries.