Chile

8.3 magnitude quake in Chile; tsunami advisories for Hawaii, California

ILLAPEL, Chile — Thousands of residents of this small city in northern Chile were sleeping outside Thursday after a powerful earthquake destroyed their homes, forced more than 1 million to evacuate and killed at least eight people in the quake-prone South American nation.

Several coastal towns were flooded from small tsunami waves set off by late Wednesday’s quake, which shook the Earth so strongly that rumbles were felt across South America.

The magnitude-8.3 quake lasted for three minutes, causing buildings to sway in the capital, Santiago, and prompting authorities to issue a tsunami warning for the Andean nation’s entire Pacific coast. People sought safety in the streets of inland cities, while others along the shore took to their cars to race to higher ground.

“I thought it was the end of the world and we were going to die,” said teary-eyed Manuel Moya, 38, sleeping with his wife on the ground outside their destroyed home in Illapel, 175 miles (280 kilometres) north of Santiago and 34 miles (55 kilometres) east of the quake’s epicenter. The town and surrounding areas have about 35,000 residents.

Speaking to the nation late Wednesday, President Michelle Bachelet urged people who had been evacuated to stay on high ground until authorities could fully evaluate the situation. Officials said schools would be closed in most of the country Thursday.

In the past year, the nation of 17 million has endured devastating floods in the north, wildfires in the south and two volcano eruptions.

“Once again we must confront a powerful blow from nature,” said Bachelet.

Authorities said eight people had been killed, a number that could climb as emergency crews are able to get into hard-hit areas on Thursday. Mahmud Aleuy, the Interior Ministry’s deputy secretary, said 1 million people were forced out of their homes and electrical power was cut off to 240,000 households.

Dozens of aftershocks, including one at magnitude-7 and seven at magnitude-6 or above, shook the region after the initial earthquake — the strongest tremor since a magnitude-8.8 quake and tsunami killed hundreds in 2010 and levelled part of the city of Concepcion in south-central Chile.

Tsunami advisories were in effect for Hawaii and parts of California. The Pacific Tsunami Warning Center originally issued a tsunami watch for Hawaii but downgraded the alert to an advisory. Tsunami warnings in Chile were lifted early Thursday.

The Pacific Tsunami Warning Center first issued a more serious tsunami watch for Hawaii shortly after Wednesday’s magnitude 8.3 earthquake. Officials later downgraded that to an advisory, saying that no major tsunami was expected in the state.

But they warned that sea-level changes and dangerous currents could pose a threat to those in or near the water.

The centre estimated that the effects from the tsunami, with waves possibly reaching 3 feet above tide level, would arrive in Hawaii about 3 a.m. (6 a.m. PDT) Thursday.

The Honolulu Department of Emergency Management said people should stay out of the ocean from 3-7 a.m., and the U.S. Coast Guard urged caution.

It appeared that Wednesday’s quake had a much smaller impact than the more powerful 2010 tremor. Chile’s traditionally strong risk-reduction measures and emergency planning have gotten better in the past five years.

“Earthquake impact is a little like real estate: What matters is location, location, location,” said Susan Hough, a geophysicist with the U.S. Geological Survey. “But it is true that preparedness and risk reduction in Chile is ahead of that in much of the world, and that makes a difference.”

The tremor was so strong that people in Buenos Aires, Argentina, on the other side of the continent, felt it. People in Peru and Brazil also reported feeling the shakes. No injuries were reported outside of Chile.

Claudio Moreno was in a Santiago bar when the quake hit. The shaking was powerful, but more worrisome was how long it lasted, he said.

“We went out in the street when we felt it was going on too long,” he said. “It was more than a minute.”

The 2010 quake killed more than 500 people, destroyed 220,000 homes, and washed away docks, riverfronts and seaside resorts. That quake released so much energy it actually it shortened the Earth’s day by a fraction of a second by changing the planet’s rotation.

The quake had huge ramifications, both political and practical, prompting the Andean nation to improve its alert systems for both quakes and tsunamis.

While Wednesday’s tremor was strong by any estimation, the 2010 quake was 5.6 times more powerful in terms of energy released, according to the U.S. Geological Survey.

Chile is one of the world’s most earthquake-prone countries because just off the coast the Nazca tectonic plate plunges beneath the South American plate, pushing the towering Andes cordillera to ever-higher altitudes. The strongest earthquake ever recorded on Earth happened in Chile — a magnitude-9.5 tremor in 1960 that killed more than 5,000 people.






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