Sunday, October 28, 2012

Tsunami hits Hawaii after 7.7-magnitude Canada earthquake


HONOLULU: Hawaii was hit by a tsunami on Saturday night prompting the authorities to order at least 100,000 people on the island state to move to higher ground. The Pacific Tsunami Warning Center said the first tsunami wave was three feet high and less forceful than expected. Some forecasts had predicted a wave of up to six feet high.
tsunami
Visitors and Oahu residents watch the ocean water surge in and out of the Ala Wai Harbor carrying various debris during a tsunami Saturday, Oct. 27, 2012, in Honolulu. The water dropped about a foot in less then 30 seconds. The first waves of a tsunami hitting Hawaii on Saturday night hit shore smaller than expected roughly three hours after officials ordered evacuations of all coastal areas threatened after a powerful earthquake off the coast of Canada. -- AP Photo
“The tsunami arrived about when we expected it should,” Senior Geophysicist Gerard Fryer told reporters at a news conference, saying: “I was expecting it to be a little bigger.”     Other waves were expected.
The tsunami hit with little warning and an alert, issued at short notice due to initial confusion among scientists about the quake’s undersea epicenter, caused massive traffic congestion as motorists made a mass exodus from low-lying areas.
The Warning Center had said the first tsunami wave would strike the islands at 10:28 p.m. Hawaii Standard Time.

Honolulu Mayor Peter Carlisle announced that all police and emergency personnel were being pulled out from potential flood  zones shortly before the first wave, leaving anyone defying evacuation orders to fend for themselves. He urged motorists who remained caught in harm’s way due to gridlocked roads to abandon their vehicles and proceed on foot.


“If you are stuck in traffic, you might consider getting out of your car and consider walking to higher ground. You will have to assess your own situation, depending on where you are right now. Right now it is critical,” he said     Vindell Hsu, a geophysicist at the Tsunami Warning Center said an estimated 100,000 to 150,000 people who live in Hawaii’s coastal zones had been urged to move to higher ground until after 10:30 p.m.


Governor Neil Abercrombie issued an emergency proclamation for the state.
The tsunami center cautioned that wave height could not be predicted and that the first wave “may not be the largest”.     It said: “All shores are at risk no matter which direction they face”.        
The warnings followed a powerful earthquake with a magnitude of 7.7 that hit Canada’s Pacific coastal province of British Columbia late on Saturday.


There were no reports of major damage. Residents in parts of British Columbia were evacuated but the province appeared to escape the biggest quake in Canada since 1949 largely unscathed.   
 The U.S. Geological Survey said the powerful quake hit the Queen Charlotte Islands just after 8 p.m. local time Saturday at a depth of about 3 miles (5 kilometers) and was centered 96 miles (155 kilometers) south of Masset, British Columbia. It was felt across a wide area in British Columbia, both on its Pacific islands and on the mainland.    


“It looks like the damage and the risk are at a very low level,” said Shirley Bond, British Columbia’s minister responsible for emergency management said. “We’re certainly grateful.”
The National Weather Service issued a tsunami warning for coastal areas of British Columbia, southern Alaska and Hawaii, but later downgraded the warning to an advisory for southern Alaska and British Columbia. They also issued an advisory for areas of northern California and southern Oregon.  


The first wave of the small tsunami, about 4 inches (101.6 millimeters), hit the southeast Alaska coastal community of Craig.   
The Pacific Tsunami Warning Center originally said there was no threat to the islands of Hawaii, but a warning was issued later Saturday and remains in effect until 7 p.m. Sunday. A small craft advisory is in effect until Sunday morning. The center says the first tsunami wave could hit the islands by about 10:30 p.m. local time.  


Dennis Sinnott of the Canadian Institute of Ocean Science said a 69-centimeter (27 inch) wave was recorded off Langara Island on the northeast tip of Haida Gwaii, formerly called the Queen Charlotte Islands. The islands are home to about 5,000 people, many of them members of the Haida aboriginal group. Another 55 centimeter (21 inch) wave hit Winter Harbour on the northeast coast of Vancouver Island.  


“It appears to be settling down,” he said. “It does not mean we won’t get another small wave coming through.”  
Canada’s largest earthquake since 1700 was an 8.1 magnitude quake on August 22, 1949 off the coast of British Columbia, according to the Canadian government’s Natural Resources website. It occurred on the Queen Charlotte Fault in what the department called Canada’s equivalent of the San Andreas Fault — the boundary between the Pacific and North American plates that runs underwater along the west coast of the Haida Gwaii.   


Saturday’s quake was the strongest in Canada since 1970 when a 7.4 magnitude quake struck south of the Haida Gwaii.   
The USGS said the temblor shook the waters around British Columbia and was followed by a 5.8 magnitude aftershock after several minutes. Several other aftershocks were reported.   
The U.S. Coast Guard in Alaska said it was trying to warn everyone with a boat on the water to prepare for a potential tsunami.   


Lt. Bernard Auth of the Juneau Command Center said the Coast Guard was working with local authorities to alert people in coastal towns to take precautions.  
The quake struck 25 miles (40 kilometers) south of Sandspit, British Columbia, on the Haida Gwaii archipelago. People in coastal areas were advised to move to higher ground.  



Urs Thomas, operator of the Golden Spruce hotel in Port Clements said there was no warning before everything began moving inside and outside the hotel. He said it lasted about three minutes.  
“It was a pretty good shock,” Thomas, 59, said. “I looked at my boat outside. It was rocking. Everything was moving. My truck was moving.”  
After the initial jolt, Thomas began to check the hotel.   
“The fixtures and everything were still swinging,” he said. “I had some picture frames coming down.”  



Lenore Lawrence, a resident of Queen Charlotte City on the Haida Gwaii, said the quake was “definitely scary,” adding she wondered if “this could be the big one.” She said the shaking lasted more than a minute. While several things fell off her mantle and broke, she said damage in her home was minimal.  
Many on the B.C. mainland said the same. 
  
“I was sitting at my desk on my computer and everything just started to move. It was maybe 20 seconds,” said Joan Girbav, manager of Pacific Inn in Prince Rupert, British Columbia. “It’s very scary. I’ve lived here all my life and I’ve never felt that.”  
Residents rushed out of their homes in Tofino, British Columbia on Vancouver Island when the tsunami sirens sounded, but they were allowed to return about two hours after the quake. 
In Hawaii, tsunami warning sirens could be heard blaring out across Honolulu, the state capital on Oahu, the state’s most populous island, prompting an immediate crush of traffic, with many motorists stopping first at service stations to top up with gasoline.


At movie theaters, films were halted in mid-screening as announcements were made urging patrons to return to their homes.
he last time Oahu had a tsunami warning was after the devastating Japanese earthquake of March 2011.
On Honolulu’s famed Waikiki Beach, residents of high-rise buildings were told to move to the third floor or higher for safety.
Stephany Sofos, a resident of Diamond Head near Waikiki, said most people had either evacuated or relocated to a higher floor.
“I moved my car up the hill, packed up my computer and have my animals all packed and with me,” Sofos said, saying that she had not yet seen any obvious receding of the surf, a telltale sign that a tsunami wave is imminent.
“I’m pretty confident because we have a lot of reefs out there and that will prevent any major damage. Maybe it’s a false confidence, but I’m not really worried,” she said, adding, “It is nerve-wracking.”     Tsunami Warning Center Geophysicist Gerard Fryer said the tsunami had caught scientists by surprise.
“We thought that the earthquake was on land and when we learned that it was deeper undersea and we gathered more information, we had no choice but to issue a warning,” he said     As residents scrambled to reach higher ground on Oahu, at least four major road accidents were reported by the state Emergency Medical Services. More accidents were also reported on the outer islands. --

Source : New Straits Time Online 29 October,2012

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