NOAA NEWS UPDATE 10:54pm: Tsunami advisory extended to N. California, Oregon; warning remains for coastal British Columbia, Alaska.
SKY NEWS UPDATE 10:46pm: Tsunami warning issued for Hawaii following magnitude 7.7 earthquake off west coast of Canada.
CBC NEWS ALERT UPDATE 9:32pm: After 7.7 quake on B.C.'s Haida Gwaii, aftershocks measured at 5.8 and 4.8. "Small" tsunami detected in Pacific. No damage known yet.
The Vancouver Sun
written by Kirstin Endemann and Gillian Shaw
Saturday October 27, 2012
A tsunami warning is in effect for the British Columbia coast after a major magnitude 7.7 earthquake struck the Queen Charlotte Islands region at 8:04 p.m. local time Saturday night.
The epicenter of the earthquake was located 198 kilometres south-southwest of Prince Rupert at a depth of 10 km in a seismically active region, said the U.S. Geological Survey and Earthquakes Canada, who measured the quake at a magnitude of 7.7. Earthquake Canada initially measured it at magnitude 7.1 but altered their report later Saturday.
The U.S. Geological Survey also measured two aftershock at magnitude 5.8 at 8:14 p.m. and magnitude 4.8 at 8:52 p.m. PDT.
The Alaska Tsunami Warning Center and Environment Canada both issued a tsunami warning for the area from the northern tip of Vancouver Island to Cape Decision, Alaska.
They and other emergency officials advised all coastal residents in those areas to move to higher ground, stay away from all harbours, inlets, including those sheltered from the sea, and not return to such areas until directed to do so by local emergency officials. People were asked to keep phone lines clear and listen to the radio for updates and instructions.
Waves were expected to arrive at Langara by 21:16 PDT and the northern tip of Vancouver Island by 21:17 PDT on October 27, Environment Canada reported.
Emergency Info BC said the first waves seen are usually not the largest, and the waves can go on for several hours. Information about dealing with an emergency is available at their website, as are the latest updates to the tsunami warning: www.emergencyinfobc.gov.bc.ca
In Tofino, tsunami sirens sounded for at least an hour Saturday night as residents evacuated to higher ground.
Paul and Lisa Jarvis, of the band Mojave, live in Tofino and first learned of the earthquake in an emergency text.
“My wife and I are on emergency social services and we got a text saying ‘please unlock the community centre, people are evacuating there,’” said Paul Jarvis, who, along with his wife is a volunteer in emergency social services and lives close to the community centre. While it's on the highest ground in Tofino, Jarvis said their house is close to the beach.
“The sirens were going off for at least the last hour -- then they went on again for about five minutes,” he said.
Paul said soon cars had overfilled the small community centre parking lot and were parked along the road as some 200 people rushed to the centre, parents with children bundled in coats over their pyjamas and people carrying water and food supplies.
“People got their supplies and got out to the community centre,” said Paul, adding that another 200 went to the local school, also on high ground and the site that had previously had been designated for evacuations.
“It is just an advisory, not actually a warning. People are just being safe,” he said.
Paul said Tofino Mayor Perry Schmunk was the community centre speaking to residents who had evacuated there.
Shortly after the quake struck, Schmunk posted a warning on Twitter and on his Facebook page: “Tofino has activated Tsunami Warning system if your in a low lying area of Tofino please proceed to the community hall ASAP.”
Earthquakes Canada seismologist John Cassidy said the major quake was felt across much of north-central B.C., including Haida Gwaii, Prince Rupert, Quesnel, Houston and Kamloops.
He said no injuries had been reported from the quake itself as it occurred far offshore, though it was large enough to cause extensive damage if located in habited areas. He could not speak to the possible damage from a related tsunami.
The "slip" quake was caused by two tectonic plates — the North American and Pacific plates — sliding past each other along the Queen Charlotte Fault, he added.
Cassidy said that though the Queen Charlotte Fault where this occurred is seismically active, experiencing in recent years earthquakes of magnitude 6 to 6.5, this is the largest quake measured there since a 8.1 magnitude one in 1949.
He said a quake of that size will come with aftershocks over the next few days.
"People should be aware of those and know what to do in the event of an aftershock, which is get under a desk or table and protect yourself from falling object, mostly."
Visit www.tsunami.gov for more information about the Tsunami alert or follow @EmergencyInfoBC on Twitter.
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