The number of people evacuated after Indonesia's deadly tsunami has nearly doubled to some 40,000 while more than 7,000 were injured in the disaster, officials said Friday, as they trimmed the official death toll.

Authorities said 426 people had been killed -- down from a previous tally of 430 -- with double-counting by different districts blamed for the change. Two dozen people remain missing almost a week after the disaster.

The fresh figures come a day after Indonesia's disaster agency raised the danger alert level for an erupting volcano that sparked the killer tsunami at the weekend.

They have also warned that fresh activity at the crater threatened to trigger another deadly wave.

Previously, the number of displaced -- including many left homeless -- stood at 22,0000 but that figure has now jumped to just over 40,000, according to the latest tally.&nbsp;

Some 7,202 people suffered injuries, jumping from 1,495, while nearly 1,300 homes were destroyed as the waves crashed into the coastlines of western Java island and south Sumatra, authorities said.

"We're recommending that people who lived near the beach be permanently relocated," national disaster agency spokesman Sutopo Purwo Nugroho told a press briefing in Jakarta.

"But it's a last-ditch option because it's not easy with limited space and people reluctant to move away."

A no-go zone around rumbling Anak Krakatoa has been widened to five kilometres (three miles) -- up from a previous two kilometres -- with residents warned to stay away from the coast.

The crater's status has been raised to high alert, the second-highest warning on Indonesia four-point danger scale.

Flights are being redirected away from the area.

A section of the crater -- which emerged at the site of the Krakatoa volcano, whose massive 1883 eruption killed at least 36,000 people -- collapsed after an eruption and slid into the ocean, triggering Saturday night's killer wave.

Before and after satellite images taken by Japan's space agency showed that a two square kilometre chunk of the volcanic island had collapsed into the water.

Indonesia, a vast Southeast Asian archipelago, is one of the most disaster-hit nations on Earth due to its position straddling the so-called Pacific Ring of Fire, where tectonic plates collide.

The tsunami was Indonesia's third major natural disaster in six months, following a series of powerful earthquakes on the island of Lombok in July and August and a quake-tsunami in September that killed around 2,200 people in Palu on Sulawesi island, with thousands more missing and presumed dead.

Authorities said 426 people had been killed -- down from a previous tally of 430 -- with double-counting by different districts blamed for the change.

The number of people evacuated after Indonesia's deadly tsunami has nearly doubled to some 40,000 while more than 7,000 were injured in the disaster, officials said Friday, as they trimmed the official death toll. Authorities said 426 people had been killed -- down from a previous tally of 430 -- with double-counting by different districts blamed for the change. Two dozen people remain missing almost a week after the disaster. The fresh figures come a day after Indonesia's disaster agency raised the danger alert level for an erupting volcano that sparked the killer tsunami at the weekend. They have also warned that fresh activity at the crater threatened to trigger another deadly wave. Previously, the number of displaced -- including many left homeless -- stood at 22,0000 but that figure has now jumped to just over 40,000, according to the latest tally. Some 7,202 people suffered injuries, jumping from 1,495, while nearly 1,300 homes were destroyed as the waves crashed into the coastlines of western Java island and south Sumatra, authorities said. "We're recommending that people who lived near the beach be permanently relocated," national disaster agency spokesman Sutopo Purwo Nugroho told a press briefing in Jakarta. "But it's a last-ditch option because it's not easy with limited space and people reluctant to move away." A no-go zone around rumbling Anak Krakatoa has been widened to five kilometres (three miles) -- up from a previous two kilometres -- with residents warned to stay away from the coast. The crater's status has been raised to high alert, the second-highest warning on Indonesia four-point danger scale. Flights are being redirected away from the area. A section of the crater -- which emerged at the site of the Krakatoa volcano, whose massive 1883 eruption killed at least 36,000 people -- collapsed after an eruption and slid into the ocean, triggering Saturday night's killer wave. Before and after satellite images taken by Japan's space agency showed that a two square kilometre chunk of the volcanic island had collapsed into the water. Indonesia, a vast Southeast Asian archipelago, is one of the most disaster-hit nations on Earth due to its position straddling the so-called Pacific Ring of Fire, where tectonic plates collide. The tsunami was Indonesia's third major natural disaster in six months, following a series of powerful earthquakes on the island of Lombok in July and August and a quake-tsunami in September that killed around 2,200 people in Palu on Sulawesi island, with thousands more missing and presumed dead.

Indonesia tsunami: Over 7,000 injured, number of evacuees doubles to nearly 40,000

Indonesia on Thursday raised the danger alert level for an erupting volcano that sparked a killer tsunami at the weekend, after earlier warning that fresh activity at the crater threatened to trigger another deadly wave.

Authorities also widened a no-go zone around rumbling Anak Krakatoa to five kilometres (three miles) -- up from a previous two kilometres -- and warned shell-shocked residents to stay away from the coast, after more than 400 were killed by Saturday night's wave.

Plumes of ash burst into the sky as pyroclastic flows -- hot gas and other volcanic material -- flowed down the crater, threatening anyone too close to the volcano and raising the risk of rough seas for boats in the vicinity.

"There is a danger of more eruptions," said national disaster agency spokesman Sutopo Purwo Nugroho.

"People (near the volcano) could be hit by hot rocks, pyroclastic flows and thick ash."&nbsp;

Authorities raised the crater's status to high alert, the second-highest warning on the country's four-point danger scale, while aviation officials ordered flights to be redirected away from the area.

'Just pray for us'

The new flows posed no immediate danger to nearby towns as the volcano sits in the middle of the Sunda Strait between Java and Sumatra islands.

But the status change sparked new fears with many residents already scared and refusing to return to their communities over fears of another tsunami.&nbsp;

"This worries me," said Ugi Sugiarti, a cook at the Augusta Hotel in hard-hit Carita. "I've already left."

Sukma, a security guard at the shattered Mutiara Carita Cottages, added: "Just please pray for us and that everything will be okay."

A section of the crater -- which emerged at the site of the Krakatoa volcano, whose massive 1883 eruption killed at least 36,000 people -- collapsed after an eruption and slid into the ocean, triggering Saturday night's killer wave.

Before and after satellite images taken by Japan's space agency showed that a two square kilometre chunk of the volcanic island had collapsed into the water.

At least 430 people were killed in the disaster, with 1,495 people injured and another 159 were missing.&nbsp;

Nearly 22,000 people have been evacuated and are living in shelters.

On Wednesday evening, the disaster agency said that wind was blowing "ash and sand" from the volcano to the nearby towns of Cilegon and Serang on Java, and advised residents to wear masks and glasses if they had to venture outdoors.

Early warning system 
 
Torrential rains have sparked flooding in some areas, hampering the relief effort and heaping more misery on the stricken region, as thousands cram emergency shelters.

Medical workers have warned that clean water and medicine supplies were running low -- stoking fears of a public health crisis.

Indonesia, a vast Southeast Asian archipelago, is one of the most disaster-hit nations on Earth due to its position straddling the so-called Pacific Ring of Fire, where tectonic plates collide.

The tsunami was Indonesia's third major natural disaster in six months, following a series of powerful earthquakes on the island of Lombok in July and August and a quake-tsunami in September that killed around 2,200 people in Palu on Sulawesi island, with thousands more missing and presumed dead.

The disaster agency has said it installed new sensors to better monitor tremors at the volatile volcano.

The agency initially said there was no tsunami threat at all, even as the killer wave crashed ashore.

It was later forced to issue a correction and an apology as it pointed to a lack of early warning systems for the high death toll.

One of the hardest-hit areas -- Tanjung Lesung -- is on a list of 10 destinations that Jakarta wants to turn into another Bali, the holiday island hotspot which draws millions of tourists annually.

"We need to have (tsunami) early warning systems, especially in tourist destinations," Indonesia's tourism minister Arief Yahya said Thursday.

"We're going to make that happen."&nbsp;

The new flows posed no immediate danger to nearby towns as the volcano sits in the middle of the Sunda Strait between Java and Sumatra islands.

Indonesia on Thursday raised the danger alert level for an erupting volcano that sparked a killer tsunami at the weekend, after earlier warning that fresh activity at the crater threatened to trigger another deadly wave. Authorities also widened a no-go zone around rumbling Anak Krakatoa to five kilometres (three miles) -- up from a previous two kilometres -- and warned shell-shocked residents to stay away from the coast, after more than 400 were killed by Saturday night's wave. Plumes of ash burst into the sky as pyroclastic flows -- hot gas and other volcanic material -- flowed down the crater, threatening anyone too close to the volcano and raising the risk of rough seas for boats in the vicinity. "There is a danger of more eruptions," said national disaster agency spokesman Sutopo Purwo Nugroho. "People (near the volcano) could be hit by hot rocks, pyroclastic flows and thick ash." Authorities raised the crater's status to high alert, the second-highest warning on the country's four-point danger scale, while aviation officials ordered flights to be redirected away from the area. 'Just pray for us' The new flows posed no immediate danger to nearby towns as the volcano sits in the middle of the Sunda Strait between Java and Sumatra islands. But the status change sparked new fears with many residents already scared and refusing to return to their communities over fears of another tsunami. "This worries me," said Ugi Sugiarti, a cook at the Augusta Hotel in hard-hit Carita. "I've already left." Sukma, a security guard at the shattered Mutiara Carita Cottages, added: "Just please pray for us and that everything will be okay." A section of the crater -- which emerged at the site of the Krakatoa volcano, whose massive 1883 eruption killed at least 36,000 people -- collapsed after an eruption and slid into the ocean, triggering Saturday night's killer wave. Before and after satellite images taken by Japan's space agency showed that a two square kilometre chunk of the volcanic island had collapsed into the water. At least 430 people were killed in the disaster, with 1,495 people injured and another 159 were missing. Nearly 22,000 people have been evacuated and are living in shelters. On Wednesday evening, the disaster agency said that wind was blowing "ash and sand" from the volcano to the nearby towns of Cilegon and Serang on Java, and advised residents to wear masks and glasses if they had to venture outdoors. Early warning system Torrential rains have sparked flooding in some areas, hampering the relief effort and heaping more misery on the stricken region, as thousands cram emergency shelters. Medical workers have warned that clean water and medicine supplies were running low -- stoking fears of a public health crisis. Indonesia, a vast Southeast Asian archipelago, is one of the most disaster-hit nations on Earth due to its position straddling the so-called Pacific Ring of Fire, where tectonic plates collide. The tsunami was Indonesia's third major natural disaster in six months, following a series of powerful earthquakes on the island of Lombok in July and August and a quake-tsunami in September that killed around 2,200 people in Palu on Sulawesi island, with thousands more missing and presumed dead. The disaster agency has said it installed new sensors to better monitor tremors at the volatile volcano. The agency initially said there was no tsunami threat at all, even as the killer wave crashed ashore. It was later forced to issue a correction and an apology as it pointed to a lack of early warning systems for the high death toll. One of the hardest-hit areas -- Tanjung Lesung -- is on a list of 10 destinations that Jakarta wants to turn into another Bali, the holiday island hotspot which draws millions of tourists annually. "We need to have (tsunami) early warning systems, especially in tourist destinations," Indonesia's tourism minister Arief Yahya said Thursday. "We're going to make that happen."

People could be hit by hot rocks, thick ash: Indonesian disaster agency warns after danger of more eruptions

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Indonesia tsunami: Over 7,000 injured, number of evacuees doubles to nearly 40,000

People could be hit by hot rocks, thick ash: Indonesian disaster agency warns after danger of more eruptions