Indonesia Disasters
An Indonesian man watches as Mount Merapi erupts in Hargobinangun, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's most dangerous volcano...
An Indonesian man watches as Mount Merapi erupts in Hargobinangun, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's most dangerous volcano is once again sending searing gas clouds and burning rocks down its scorched flanks. (AP Photo/Slamet Riyadi)
Indonesia Disasters
People watch Mount Merapi spewing volcanic materials in Deles, Central Java, Indonesia, early Wednesday, Nov. 3, 2010. Indonesia's most dangerous vol...
People watch Mount Merapi spewing volcanic materials in Deles, Central Java, Indonesia, early Wednesday, Nov. 3, 2010. Indonesia's most dangerous volcano is once again sending searing gas clouds and burning rocks down its scorched flanks. (AP Photo/Binsar Bakkara)
Indonesia Disasters
In this late Tuesday, Nov. 2, 2010 photo, lava glows at the crater of Mount Merapi as seen from Deles, Central Java, Indonesia. Indonesia's most dang...
In this late Tuesday, Nov. 2, 2010 photo, lava glows at the crater of Mount Merapi as seen from Deles, Central Java, Indonesia. Indonesia's most dangerous volcano is once again sending searing gas clouds and burning rocks down its scorched flanks. (AP Photo/Binsar Bakkara)
Indonesia Disasters
A villager reacts as she flees her home following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. I...
A villager reacts as she flees her home following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia is evacuating more people from near Mount Merapi after the volcano had its biggest eruption yet. (AP Photo/Slamet Riyadi)
Indonesia Disasters
Volunteers evacuate a sick man from his house following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 20...
Volunteers evacuate a sick man from his house following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's deadly Mount Merapi erupted Wednesday with its biggest volcanic blast yet, spewing hot clouds up to six miles away. (AP Photo/Trisnadi)
Indonesia Disasters
Villagers flee their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, WedNesday, Nov. 3, 2010. Indonesia is e...
Villagers flee their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, WedNesday, Nov. 3, 2010. Indonesia is evacuating more people from near Mount Merapi after the volcano had its biggest eruption yet. (AP Photo/Slamet Riyadi)
APTOPIX Indonesia Disasters
An Indonesian man watches as Mount Merapi erupts in Kepuharjo, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's most dangerous volcano is ...
An Indonesian man watches as Mount Merapi erupts in Kepuharjo, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's most dangerous volcano is once again sending searing gas clouds and burning rocks down its scorched flanks. (AP Photo/Gembong Nusantara)
Indonesia Disasters
Villagers board a truck as they evacuate their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov...
Villagers board a truck as they evacuate their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. (AP Photo/Trisnadi)
Indonesia Disasters
Indonesian soldiers evacuate villagers from their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, ...
Indonesian soldiers evacuate villagers from their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia is evacuating more people from near Mount Merapi after the volcano had its biggest eruption yet. (AP Photo/Slamet Riyadi)
Indonesia Disasters
Villagers board a truck as they evacuate their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov...
Villagers board a truck as they evacuate their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. (AP Photo/Trisnadi)
Indonesia Disasters
Volunteers help a sick elderly man to board a truck during an evacuation following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indon...
Volunteers help a sick elderly man to board a truck during an evacuation following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's deadly Mount Merapi erupted Wednesday with its biggest volcanic blast yet, spewing hot clouds up to six miles away. (AP Photo/Trisnadi)
Indonesia Disasters
Residents walk to a temporary shelter as they flee their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wedn...
Residents walk to a temporary shelter as they flee their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's deadly Mount Merapi erupted Wednesday with its biggest volcanic blast yet, spewing hot clouds up to six miles away. (AP Photo/Trisnadi)
Indonesia Disasters
Indonesian soldiers evacuate villagers from their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, WedNesday, ...
Indonesian soldiers evacuate villagers from their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, WedNesday, Nov. 3, 2010. Indonesia is evacuating more people from near Mount Merapi after the volcano had its biggest eruption yet. (AP Photo/Slamet Riyadi)
Indonesia Disasters
Villagers flee their homes on motorcycles following another eruption of Mount Merapi in Klaten, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's dead...
Villagers flee their homes on motorcycles following another eruption of Mount Merapi in Klaten, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's deadly volcano erupted Wednesday with its biggest blast yet, shooting searing ash miles into the sky and forcing the hasty evacuations of panicked villagers and emergency shelters near the base. (AP Photo/Irwin Fedriansyah)
Indonesia Disasters
Villagers flee their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, WedNesday, Nov. 3, 2010. Indonesia's dea...
Villagers flee their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, WedNesday, Nov. 3, 2010. Indonesia's deadly volcano erupted Wednesday with its biggest blast yet, shooting searing ash miles into the sky and forcing the hasty evacuations of panicked villagers and emergency shelters near the base. (AP Photo/Slamet Riyadi)
Indonesia Disasters
Villagers sit at a temporary shelter as they flee their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wedne...
Villagers sit at a temporary shelter as they flee their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's deadly volcano erupted Wednesday with its biggest blast yet, shooting searing ash miles into the sky and forcing the hasty evacuations of panicked villagers and emergency shelters near the base. (AP Photo/Slamet Riyadi)
Indonesia Disasters
Villagers flee their homes on a truck following another eruption of Mount Merapi in Klaten, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's deadly v...
Villagers flee their homes on a truck following another eruption of Mount Merapi in Klaten, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's deadly volcano erupted Wednesday with its biggest blast yet, shooting searing ash miles into the sky and forcing the hasty evacuations of panicked villagers and emergency shelters near the base. (AP Photo/Irwin Fedriansyah)
Indonesia Disasters
Indonesian soldiers evacuate villagers from their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, ...
Indonesian soldiers evacuate villagers from their homes following another eruption of Mount Merapi in Cangkringan, Yogyakarta, Indonesia, Wednesday, Nov. 3, 2010. Indonesia's deadly volcano erupted Wednesday with its biggest blast yet, shooting searing ash miles into the sky and forcing the hasty evacuations of panicked villagers and emergency shelters near the base. (AP Photo/Trisnadi)
A deadly Indonesian volcano spewing lava and smoke for more than a week erupted Wednesday with its biggest blast yet, shooting searing ash miles into the air as soldiers hastily evacuated villages and emergency shelters.
Women screamed and children cried as they were loaded into trucks while rocks and debris rained from the sky. Several abandoned homes were set ablaze and the carcasses of incinerated cattle littered the scorched slopes.
No new casualties were reported immediately after the booming explosion, which lasted more than an hour.
"This is an extraordinary eruption, triple from the first" on Oct. 26, said Surono, a state volcanologist.
More than 70,000 villagers have been evacuated from the 9,700-foot (3,000-meter) Mount Merapi's once-fertile slopes since it began erupting just over a week ago, killing 38 people and injuring dozens, most with severe burns.
Almost all have packed into crowded camps well away from the base.
Djarot Nugroho, the head of Central Java's disaster management agency, said funding for the refugees would run out in five days unless a national disaster was declared.
There have been more than a dozen strong blasts in recent days _ including one Wednesday morning _ prompting some scientists earlier to say pressure building up behind a magma dome in the crater was easing.
By nightfall, however, new alarms had been raised.
The danger zone was widened from 10 kilometers (six miles) from the glowing crater to 15 (9) because of the heightened threat. Soldiers and police blocked all roads leading up the mountain, shooing away television crews and reporters.
"I (didn't) think of anything else except to save my wife and son. We left my house and everything," said Tentrem Wahono, 50, who lives in Kaliurang village, about 10 kilometers (6 miles) from the peak.
He and his family fled on a motorbike, "racing with the explosive sounds as the searing ash chased us from behind."
The last eruption, which occurred during a heavy downpour, raised Merapi's status to "crisis" condition, said Andi Arief, a special staff at the presidential office dealing with disaster and social assistance.
Merapi, one of the world's most active volcanoes, has erupted many times in the last century, killing more than 1,400 people.
Indonesia, a vast archipelago of 235 million people, is prone to earthquakes and volcanos because it sits along the Pacific "Ring of Fire," a horseshoe-shaped string of faults that lines the Pacific.
As a reminder of that, a 6.0-magnitude quake hit waters off the eastern province of Papua on Wednesday evening, rattling several villages but causing no known damage or casualties.
The volcano's initial Oct. 26 blast occurred less than 24 hours after a towering tsunami slammed into remote islands on the western end of the country, sweeping entire villages to sea and killing at least 428 people.
There, too, thousands of people were displaced, many living in government camps.
In both cases, relief operations are expected to take weeks, possibly months.
Helicopters and boats were delivering aid to tsunami survivors in the most distant Mentawai islands, more than 800 miles (1,300 kilometers) west of the volcano.
The islands, popular among surfers, lie almost directly over the fault that spawned the 2004 Indian Ocean monster quake and wave.
There has been talk in recent days about relocating villagers away from vulnerable coastlines.
"I'm all for it," said Regen, who lives on Pagai Utara island and goes by one name. "We're all terrified now, especially at night, and wouldn't mind moving further inland."
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Associated Press writers Irwan Firdaus, Ali Kotarumalos and Niniek Karmini contributed to this report from Jakarta.