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Indonesia tsunami: Dozens dead in apparent "volcano tsunami"

Jakarta, Indonesia -- A tsunami apparently caused by the eruption of an island volcano killed at least 62 people around Indonesia's Sunda Strait. The tsunami sent a wall of water crashing some 65 feet inland and sweeping away hundreds of houses including hotels, the government and witnesses said.

Some 600 people have been reported injured when the tsunami hit 9:27 p.m. Saturday, the Disaster Management Agency said.

Scientists from Indonesia's Meteorology and Geophysics agency said it could have been caused by undersea landslides from the eruption of Anak Krakatau, a volcanic island formed over years from the nearby Krakatau volcano. They also cited tidal waves caused by the full moon.The Meteorology and Geophysics agency in a separate statement said it could have been caused by undersea landslides from Anak Krakatau, a volcanic island formed over years from the Krakatau volcano. 

The Anak Krakatoa volcano has seen increased activity in recent months. Indonesia's geologic agency said the volcano erupted for two minutes and 12 seconds on Friday, creating an ash cloud that rose 1,300 feet above the mountain, BBC News reports.   

Because part of Krakatoa is underwater, she said "instead of just causing a landslide, you get an undersea landslide which pushes water as it moves." This can then cause a tsunami.  

"I had to run, as the wave passed the beach and landed 15-20m (meters) inland," Øystein Lund Andersen wrote on Facebook. He said he was taking pictures of the volcano when he suddenly saw a big wave come toward him.

"Next wave entered the hotel area where I was staying and downed cars on the road behind it. Managed to evacuate with my family to higher ground trough forest paths and villages, where we are taken care of (by) the locals. Were unharmed, thankfully."

The worst affected area was the Pandeglang region of Banten province in Java, which encompasses the Ujung Kulon National Park and popular beaches, the disaster agency said. Of the deaths, 33 were in Pandeglang.

In the city of Bandar Lampung on southern Sumatra, hundreds of residents took refuge at the governor's office.

Alif, a resident in Pandeglang district who goes by one name, said told MetroTV station that many people were still searching for missing relatives.

The Anak Krakatau volcano in the Sunda Strait that links the Indian Ocean and Java Sea erupted about 24 minutes before the tsunami, the geophysics agency said.

The 305-meter (1,000-foot) -high volcano, about 200 kilometers (124 miles) southwest of capital Jakarta, has been erupting since June. In July, authorities widened its no-go areas to 2 kilometers (1.24 miles) from the crater.

Gegar Prasetya, co-founder of the Tsunami Research Center Indonesia, said the waves were likely caused by a flank collapse - when a big section of a volcano's slope gives way. He said it's possible for an eruption to trigger a landslide above ground or beneath the ocean, both capable of producing a tsunami.

"Actually, the tsunami was not really big, only one meter," said Prasetya, who has closely studied Krakatau. "The problem is people always tend to build everything close to the shoreline."

Physical losses included 430 heavily damaged homes, nine heavily damaged hotels and 10 heavily damaged vessels. Footage posted by the head of the disaster agency showed the aftermath of flooded streets and an overturned car.

In September, at least 2,500 people were killed by a quake and tsunami that hit the city of Palu on the island of Sulawesi, which is just east of Borneo. 

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