Indonesia raises aviation warnings after Sumatra volcano emits ash cloud

Ash from Mount Sinabung volcano rises to an approximate height of 5,000 meters during an eruption as seen from Brastagi town in Karo, North Sumatra, Indonesia February 19, 2018 in this photo taken by Antara Foto. Antara Foto/Tibta Peranginangin/ via REUTERS Ash from Mount Sinabung volcano rises to an approximate height of 5,000 meters during an eruption as seen from Brastagi town in Karo, North Sumatra, Indonesia February 19, 2018 in this photo taken by Antara Foto. Antara Foto/Tibta Peranginangin/ via REUTERS

JAKARTA (Reuters) – Indonesia on Monday raised flight warnings around the Mount Sinabung volcano on Sumatra island to their highest level after it sent a towering plume of ash more than 7 kilometers (4.4 miles) into the air, its biggest eruption this year.

Areas around the crater of the volcano, located about 1,900 km (1,181 miles) northwest of the capital, Jakarta, have been off-limits for several years because of frequent volcanic activity.

The Bureau of Meteorology’s Volcanic Ash Advisory Centre (VACC), in Australia’s northern city of Darwin, issued maps on Monday showing an ash cloud heading in three directions from Sinabung, to the north, northwest and south-southeast.

Ash from Mount Sinabung volcano rises to an approximate height of 5,000 meters during an eruption in Karo, North Sumatra, Indonesia February 19, 2018 in this photo taken by Antara Foto. Antara Foto/Maz Yons/ via REUTERS

Ash from Mount Sinabung volcano rises to an approximate height of 5,000 meters during an eruption in Karo, North Sumatra, Indonesia February 19, 2018 in this photo taken by Antara Foto. Antara Foto/Maz Yons/ via REUTERS

Indonesia also upgraded its Volcano Observatory Notice for Aviation (VONA) to red, its highest warning, and said the ash-cloud top had reached 23,872 feet (7,276 meters), according to a ground observer.

Sinabung is about 75 km (47 miles) southwest of Kualanamu International Airport in Medan.

Nur Isnin Istianto, head of the regional airport authority, said Kutacane airport in Aceh province had been closed, but the wind direction allowed the airport of Kualanamu, Meulaboh and Silangit to remain open.

Sutopo Purwo Nugroho, a spokesman for Indonesia’s Disaster Agency, said the eruption began on Monday morning, accompanied by multiple earthquakes and showering surrounding villages with small rocks.

“In five districts it became dark with a visibility of about 5 metres,” he said in a statement.

No casualties were reported. The agency urged the public to stay out of a 7-km (4-mile) exclusion zone around the crater, and watch for further warnings, which could cover floods.

The 2,460-metre (8,071-ft) tall volcano is among Indonesia’s most active. When Sinabung erupted in 2014, more than a dozen people were killed and thousands were evacuated. Prior to recent times, its last known eruption was four centuries ago.

(Reporting by Cindy Silviana; Writing by Fergus Jensen; Editing by Clarence Fernandez)

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