A magnitude 6.7 earthquake has struck Vancouver Island, Canada Region at a depth of 25.9 km (16.1 miles). The quake hit at 19:41:35 UTC, Friday 9th September 2011 and was located at 49.474°N, 126.974°W. The epicentre was 138 km (86 miles) southwest of Campbell River, British Columbia, Canada; 140 km (87 miles) southeast (164°) from Port Hardy, BC, Canada; 212 km (132 miles) northwest (306°) from Neah Bay, WA; and 279 km (173 miles) west (276°) from Vancouver, British Columbia, Canada.
No tsunami warning was issued and there are no reports of any damage at this time.
A 6.7 magnitude earthquake off the west coast of Vancouver Island at 12:41 p.m. today was felt in Metro Vancouver. The epicenter was located 135 kilometers south-southeast of the town of Port Hardy on the island, the USGS said in its assessment. The USGS reported it was at a depth of 25.9 kilometres, revising its original assessment that it was only two kilometres below the surface. No tsunami warning has been issued. The website said no there's no "destructive widespread tsunami threat" but earthquakes of this size sometimes generate locate tsunamis that can be destructive along coasts located within a hundred kilometres of the earthquake epicentre. "Authorities in the region of the epicentre should be aware of this possibility and take appropriate action." In the Vancouver Sun newsroom, lights swayed for a half-minute when the quake struck. There were no immediate signs of damage in downtown Vancouver. The earthquake shook buildings in the tiny Vancouver Island community of Zeballos, but there appeared to be no damage and there were no injuries. The power went down but came back quickly, said Arlene Coburn, a 38-year resident of the remote west coast community. Coburn was at the school when the earthquake hit. She said that it felt like the whole building was going to topple over, but nothing fell off the walls. "One big one, and a little tremor, and that was it," she said. "It gave [the school] a good sway." The 60 or so children that attend the Zeballos Elementary Secondary School were ushered out and across a bridge, a measure used when there's a concern of a Tsunami, said Coburn, a part-time janitor at the school. Arlene's husband Geoff said there were no injuries and no damage as far as he knew in the community of about 200 people. "There was no cause for panic," said Geoff. The quake created a slight rattling as far away as Seattle, Washington, but police in the U.S. city said there were no reports of damage. The list of cities where the quake was felt includes San Francisco and Edmonton. - Vancouver Sun.
This 6.7 quake has taken place within the Cascadia Subduction Zone. This zone is possibly hundreds of years overdue for a major quake event, and I have concluded that this quake may be a possible precursor for a much larger quake in the days to come along the west coast of Canada and the United States. More than likely California. I will continue observing the zone and its geologic activity and give updates when available. Many buildings within the Cascadia subduction zone are not built to withstand a quake event of the magnitude that would result from the plate slipping and relieving its pressure.
Stay tuned. More anon.