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14 die as Indonesian volcano erupts again

Blast surprises people allowed to return home

MOUNT SINABUNG, Indonesia — An Indonesian volcano that has been rumbling for months unleased a major eruption Saturday, killing 14 people just a day after authorities allowed thousands of villagers who had been evacuated to return to its slopes, saying that activity was decreasing, officials said.

Among the dead on Mount Sinabung were a local television journalist and four high-school students and their teacher who were visiting the mountain to see the eruptions up close, said National Disaster Mitigation Agency spokesman Sutopo Purwo Nugroho. At least three other people were injured, and authorities feared the death toll would rise.

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Sinabung in western Sumatra has been erupting for four months, sending lava and searing gas and rocks rolling down its southern slopes.

Authorities had removed more than 30,000 people, housing them in cramped tents, schools, and public buildings. Many have been desperate to return to check on homes and farms, presenting a dilemma for the government.

On Friday, authorities allowed nearly 14,000 people living outside a three-mile danger zone to return home after volcanic activity decreased. Others living close to the peak have been returning to their homes during the past four months despite the dangers.

On Saturday, a series of huge blasts and eruptions thundered from the 8,530-foot-high volcano, sending lava and pyroclastic flows up to 2.8 miles away, Nugroho said. Television footage showed villages, farms, and trees around the volcano covered in thick gray ash.

After the eruption, all those who had been allowed to return home Friday were ordered back into evacuation centers.

‘‘The death toll is likely to rise as many people are reported still missing and the darkness hampered our rescue efforts,’’ said Lieutenant Colonel Asep Sukarna, who led the operation to retrieve the charred corpses some two miles from the volcano’s peak.

Indonesia is prone to seismic activity because of its location on the Pacific ‘‘Ring of Fire,’’ an arc of volcanoes and fault lines of the Pacific Basin. Mount Sinabung is among about 130 active volcanoes in Indonesia and has sporadically erupted since September.

In 2010, 324 people were killed in two months when Indonesia’s most volatile volcano, Mount Merapi, roared to life.

As now in Sinabung, authorities struggled to keep people away from the mountain. Scientists monitor Merapi, Sinabung, and other Indonesian volcanos nonstop, but predicting their activity with any accuracy is all but impossible.

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