Indonesian volcano spews new burst of ash

September 3, 2010 By BINSAR BAKKARA , Associated Press Writer
Mount Sinabung spews volcanic smoke as seen from Tanah Karo, North Sumatra, Indonesia, Thursday, Sept. 2, 2010. The eruption of the volcano that has been dormant for four hundred years over the weekend caught many scientists off guard and left the region on high alert. (AP Photo/Binsar Bakkara)

(AP) -- An Indonesian volcano that was quiet for four centuries shot a new, powerful burst of hot ash more than 10,000 feet (three kilometers) in the air Friday, sending frightened residents fleeing to safety for the second time this week.

The tremor from the eruption - the strongest so far - could be felt five miles (eight kilometers) away.

"This was a big one!" said 37-year-old Anto Sembiring, who abandoned his coffee shop not far from the crater's mouth to join hundreds of others near Mount Sinabung's base. "We all ran as fast as we could ... Everyone was panicking."

The eruption of Mount Sinabung on Sunday and Monday - which caught many scientists off guard - forced 30,000 people living along its fertile slopes in North Sumatra province to evacuate to cramped emergency shelters in nearby towns.

Many started returning to their mountainside homes as activity started to wane, saying they wanted to tend to their vegetable farms and rice fields and to reopen small businesses.

A new alert was issued several hours before Friday's blast.

Some people trudged back down the slopes, carrying blankets, clothes and food, but others insisted on staying, even after the new explosion, which caused the entire mountain to shake for five minutes.

"We're not going anywhere," said Razia Barimbing, who was among 50 men refusing to budge, saying they had to protect abandoned villages a few miles (kilometers) from the crater's mouth against looters.

"It's so sad to see this," said the 35-year-old farmer, pointing to the white dust blanketing houses, gardens and even livestock. "We just want this to be over, so we can pull our lives back together, and get our children back in school."

The air was thick with the smell of sulfur and, despite a soft drizzle, heavy smoke limited visibility to just a few yards (meters). Some small domestic hopper flights had to be diverted, according to Bambang Ervan, the transportation ministry's spokesman.

International air travel was unaffected.

Mount Sinabung had last erupted in 1600, and government vulcanologists acknowledged they had made no efforts before the mountain started rumbling last week to sample gases or look out for rising magma or other signs of seismic activity.

They were too busy with more than 129 active volcanoes in , a seismically charged region because of its location on the so-called "Ring of Fire" - a series of fault lines stretching from the Western Hemisphere through Japan and Southeast Asia.

They said from now on they will be watching it very closely.

"It's still going off, even now ," said Surono, who heads the nation's alert center. "You can't see it because of the heavy fog around the crater, but according to our seismic recorder, there are still small eruptions."

There are fears that current activity could foreshadow a much more destructive explosion in a few weeks or months, though it is possible, too, that the mountain will go back to sleep after letting off steam.

The archipelagic nation has recorded some of the largest eruptions in history.

The 1815 explosion of Mount Tambora buried the inhabitants of Sumbawa Island under searing ash, gas and rock, killing an estimated 88,000 people.

The 1883 eruption of Krakatoa could be heard 2,000 miles (3,200 kilometers) away and blackened skies region-wide for months. At least 36,000 people were killed in the blast and the tsunami that followed.

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