Chile warns area around sinkhole at high risk of further collapse

SANTIAGO --- Chilean authorities warned that the area around a copper mine where a sinkhole suddenly appeared is at high risk of further collapse and has set up a security perimeter. Government agencies and the mine's owners are studying what caused the appearance in late July of the mysterious hole that spans 36.5 meters (120 feet) in diameter. The area is at high risk of further cracks or sinking near the Alcaparrosa mine, about 665 km (413 miles) north of Santiago, the Committee for Disaster Risk Management of Chile's northern Atacama region determined on Saturday night. "Considering that the said scenario presents a threat to the life and physical integrity of people, ac...

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