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Major earthquake in southern Alaska, 6.6 quake also hits Malaga, Spain (Updated)

By Steve Quinn

A powerful 7.1 magnitude earthquake struck remote southern Alaska early on Sunday, unleashing shudders felt several hundred miles (km) from the tremor’s lakefront epicenter at the far end of Cook Inlet from Anchorage, the state’s largest city.

No injuries were reported, but several neighborhoods in the town of Kenai – roughly halfway between the quake’s center and Anchorage – were temporarily evacuated after a gas explosion damaged four homes several hours later, a city spokesman said.

As of Sunday night, local utility company Enstar was still investigating whether the earthquake triggered a gas leak believed to have caused the blast, company spokesman John Sims said.

There were also reports of brief power outages in Anchorage, about 160 miles (257 km) southwest of the epicenter, and cities immediately to the north and south.

The quake, initially reported at a 7.3 magnitude, struck at 1:30 a.m. about 30 miles (48 km) east-southeast of Pedro Bay on the shore of Iliamna Lake, at the foot of a mountain chain just west of Cook Inlet, the U.S. Geological Survey (USGS) reported.

The quake was felt as far away as Whitehorse, the capital of Canada’s Yukon Territory more than 600 miles (966 km) west of Anchorage, according to the USGS.

It was recorded 79 miles (128 km) beneath the surface, a depth that helped keep damage to a minimum, said Dara Merz, a research technician with the Alaska Earthquake Center in Fairbanks.

“If you take into account how deep it was, that’s a lot of earth and rock that seismic waves have to work through to get to the surface,” Merz said.

The Fairbanks agency reported a series of aftershocks reaching magnitudes of up to 4.7, though Merz said even larger tremors could follow.

Alaska, a seismically active state, records anywhere from 80 to 100 quakes daily, most of them hardly ever noticed. One of the more powerful quakes to hit Alaska in recent years was a 7.9 magnitude temblor that struck beneath the ocean floor near the Aleutian Islands chain in June 2014, but it caused no injuries or major damage.

Following Sunday’s quake, jittery Anchorage residents and hotel guests who briefly fled their buildings took to social media sites to share their experiences. Some posted photos of stores with aisles littered by fallen merchandise knocked off shelves to the floor.

The quake produced no tsunami threat, according to the U.S. Pacific Tsunami Warning Center.

Also a major earthquake of magnitude 6.6 struck about 162 km (100 miles) southeast of Malaga, Spain, on Tuesday, the U.S. Geological Survey said.

There were no immediate reports of any casualties or major damage across Spain’s southern coast early on Monday.

The quake hit at 0422 GMT, the Spanish National Geographic Institute said, and was followed by six lesser aftershocks. The U.S. Geological Survey had earlier reported the tremor had a magnitude of 6.6 and was registered at 33 km (20 miles) deep.

Emergency services in the southern region of Andalucia said in a statement on their Twitter feed they had received 250 calls from alarmed residents.

The tremors and aftershocks were felt throughout the region, including in the cities of Malaga, Cordoba, Seville and Granada.

In Melilla, a Spanish enclave on the Moroccan coast, emergency services said they had received more than 200 calls from people warning of damage to properties. Schools would remain shut on Monday so buildings could be inspected.

Media in Melilla said power was being restored to areas where it had been cut.

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