Guatemala's Fuego volcano belched burning lava and black ash into the sky early Saturday, leading the government to issue an airplane advisory and close sections of highway.

The volcano, about 25 miles southwest of the capital, erupted about 2:45 a.m. (0745 GMT), spewing a column of ash up to 16,400 feet above the crater and launching burning red lava nearly 1,300 feet high.

The world's oceans are turning acidic at what could be the fastest pace of any time in the past 300 million years, even more rapidly than during a monster emission of planet-warming carbon 56 million years ago, scientists said on Thursday.

Looking back at this bygone warm period in Earth's history could offer help in forecasting the impact of human-spurred climate change, researchers said.

The National Centre for Antarctic and Ocean Research (NCAOR) Research Director, Rasik Ravindran, pegs climate change studies as the most significant from the perspective of future. Ice cores recovered from polar ice sheets offer the best possibility of reconstructing past atmospheric compositions.

A strong 6.8 earthquake hit the central Philippines on Monday but there was no danger of a widespread tsunami, seismologists said.

The quake hit 70 kilometres (44 miles) north of the city of Dumaguete on Negros Island at 11:49 am (0349 GMT) at a depth of 46 kilometres, the US Geological Survey said.

A 5.3-magnitude earthquake rattled the northern tip of Indonesia today, geologists said, but there were no immediate reports of damage.

The quake struck at a shallow depth of one kilometre around 160 km southeast of Banda Aceh on Indonesia’s Sumatra island at 2:09 am local time, the US Geological Survey said.

Aceh province is frequently hit by earthquakes and was devastated by the 2004 Boxing Day tsunami.

Indonesia sits on the Pacific “Ring of Fire”, where the meeting of continental plates causes strong seismic activity including earthquakes and volcanic eruptions.

A 5.9-magnitude earthquake struck the Indonesian island of Sulawesi on Monday, US seismologists said, but there were no immediate reports of casualties or damage, and no tsunami alert.

The quake hit at 9:23 am (0123 GMT) at a depth of 33 kilometres (21 miles), around 57 kilometres southwest of the main city of Palu, the US Geological Survey said.

Kinshasa, Congo: A national park in Congo best known for its endangered mountain gorillas is now inviting tourists to go on overnight treks to see a volcano spurting fountains of lava nearly 1,000 feet into the air.
Mount Nyamulagira began erupting on November 6 and could continue to do so for days, or even months. “Last night’s was the most spectacular yet,” spokeswoman LuAnne Chad said on Monday from Virunga National Park.

London: There will be an unexpected sight high in the skies over the British county of Norfolk nextmonth: A huge balloon attached to the ground by a giant hosepipe.

A volcano that has been erupting for several days in Alaska's Aleutian Islands may be preparing for a more explosive event, scientists said on Wednesday.

Cleveland Volcano, a 5,676-foot peak located on Chuginadak Island, about 940 miles southwest of Anchorage, has been in low-level eruption since the end of July, the Alaska Volcano Observatory said.

"An eruption for us is any time that magma is coming up from the surface in the ground," said John Power, scientist in charge at the observatory, a joint federal-state operation. "This is very much happening here."