A volcanic eruption in Indonesia that has displaced more than 22,000 people is intensifying, local authorities say.

Mount Sinabung, which began spewing gas in September after a three-year slumber, has erupted over 220 times this week.

The hot ashes and smoke have caused pyroclastic flows -- a fast-moving mass of gas and rocks -- to stretch to seven kilometers down the southeast slope of the 2,600 meter (8,530 foot) mountain in North Sumatra. Last week, flows reached three kilometers.

The local government is still able to cope with the disaster, and no casualties have been reported according to Sutopo Purwo Nugroho, spokesman for Indonesia's national agency for disaster management.
The government has evacuated more than 22,000 people to 34 temporary camps.

However one area, housing at least 1,000 residents, still lacks necessary provisions and shelter.

The displaced say they have urgent need for baby formula, clean water and gas, said local aid coordinator in Jambur Siabang-abang.

A national emergency hasn't been declared, but the government is prepared for the "worst case scenario."

In case of bigger eruptions, the danger zone would be extended to a radius of 10 kilometers from 5 to 7 kilometers currently.

If the zone is enlarged, Nugroho estimates that 59,000 people would have to be evacuated.

Sebuah letusan gunung berapi di Indonesia yang telah membuat lebih dari 22.000 orang mengungsi.

Gunung Sinabung, yang mulai memuntahkan gas pada bulan September setelah tidur selama tiga tahun, telah meletus lebih dari 220 kali minggu ini.

Abu dan asap panas telah menyebabkan aliran piroklastik - massa bergerak cepat dari gas dan batu - meregang untuk tujuh kilometer menuruni lereng tenggara dari 2.600 meteran ( 8.530 kaki ) gunung di Sumatera Utara.
Pekan lalu, arus mencapai tiga kilometer. Pemerintah daerah masih mampu mengatasi bencana, dan tidak ada korban telah dilaporkan menurut Sutopo Purwo Nugroho, juru bicara badan nasional Indonesia untuk manajemen bencana .

Pemerintah telah mengevakuasi lebih dari 22.000 orang di 34 kemah penampungan sementara.

Namun satu area, perumahan setidaknya 1.000 warga, masih kekurangan bahan pangan dan tempat yang layak.

Para pengungsi mengatakan mereka memiliki kebutuhan mendesak untuk susu bayi, air bersih dan gas, kata koordinator bantuan lokal di Jambur Siabang-abang.

Sebuah darurat nasional belum diumumkan, namun pemerintah siap untuk "skenario terburuk."

Dalam kasus letusan lebih besar, zona bahaya akan diperluas hingga radius 10 kilometer dari 5 sampai 7 kilometer saat ini. Jika zona diperbesar, Nugroho memperkirakan bahwa 59.000 orang harus dievakuasi.

Hot lava runs down Mount Sinabung, Indonesia's highest mountain, from a lava dome on January 5 in North Sumatra, Indonesia. It has been erupting since September.


Mount Sinabung spews ash and lava during an eruption.


Women carry their children as they are evacuated to a temporary evacuation center on Wednesday after their village is hit by ash.


Sinabung spews ash into the air on Monday.

A village is covered by ash.


Villagers harvest tomatoes from fields covered by ash.


A man helps children onto a truck as residents are evacuated to a temporary evacuation center.

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