Japan warned tourists to keep away from popular Mount Aso after it began belching smoke and ash into the air, the latest eruption in one of the world's most volcanically active countries.
A large column of smoke streamed from Chile's Calbuco volcano, prompting new warnings that it could erupt again.
Southern Chile's Calbuco volcano erupted for the first time in nearly half a century, spewing a giant funnel of ash 10 kilometers (six miles) into the sky.
Small volcanic eruptions could be slowing global warming by spewing sulfur aerosols that reach the upper atmosphere and reflect sunlight away from the Earth.
Smoldering lava from a slow-erupting volcano has reached within yards (several meters) of homes on Hawaii's Big Island, emergency officials said.
An eyewitness has managed to capture the eruption of the Mount Ontake volcano in central Japan that started without warning this Saturday at noon.
A volcano erupted in central Japan, shooting ash and rocks into the air that reportedly left eight hikers injured.
Hawaii's Big Island has declared a state of emergency as lava from an active volcano threatens nearby homes, which could be evacuated within days.
Iceland raised the aviation alert at its largest volcano, Bardarbunga, to maximum level red following a new eruption in a lava field nearby.
A volcano erupted in eastern Papua New Guinea, spewing rocks and ash into the air.
Flights into and out of the northern Australian city of Darwin were cancelled Saturday and some to Bali affected due to huge ash clouds thrown up by an Indonesian volcano.
Peruvian authorities began evacuating 4,000 people Thursday from villages near a volcano that has seen significantly increased activity, spewing smoke and ash.
Residents have fled villages near Peru's Ubinas volcano, which this week began spitting out white hot chunks of rock, some as big as 30 centimeters (one foot) in diameter.
A volcano in central Ecuador spewed up a column of hot ash and smoke 10 kilometers (six miles) high on Friday, increasing fears of an eruption.
The steam and heat from volcanoes allowed species of plants and animals to survive past ice ages, a study showed Tuesday, offering help for scientists dealing with climate change.
Hundreds of thousands of Indonesians were ordered to evacuate and three international airports were closed Friday after a volcano on the main island of Java erupted spectacularly, hurling red-hot ash and rocks.
Indonesian officials searched through thick ash for bodies Sunday after Mount Sinabung volcano erupted, killing at least 15 people.
Bulging in land that occurs before a volcano erupts points to how much ash will be spewed into the sky, providing a useful early warning for aviation.
Geologists on Sunday reported insights into super-volcanoes, the brooding, enigmatic giants of Earth's crust whose eruptions are as catastrophic as they are rare.
An Indonesian volcano that has erupted relentlessly for months shot volcanic ash into the air 30 times on Saturday, forcing further evacuations with more than 20,000 people now displaced, an official said.
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