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Wednesday, October 29, 2014

Hawaiian lava flow creeps toward homes

Lava was seen near Pahoa, Hawaii, on 29 October 2014 The lava can exceed temperatures of 1,600F (900C)

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Rain has helped tamp down smoke from a creeping lava flow which threatens residents of a Hawaiian village.
The slow moving, red hot lava from Kilauea volcano has been flowing toward the village of Pahoa for weeks.
Hotter than 1,600F (900C), it advanced 90 yards (82m) overnight on Tuesday and threatens homes and property.
Evacuated residents packed up their homes and relocated to neighbouring areas as they awaited word of the molten lava's spread.
"People have their life savings in their properties here. They face losing it all," businessman Mike Metcalf told the Reuters news agency.
Rain on Wednesday was not enough to limit the lava flow, but did help limit the smoke emanating from the spreading stream.
For the first time, the lava could be seen from the homes that are in its path.
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A family prepares
Denise Lagrimas, left, and her brother Beatle Rodriguez pack dishes at their home in Pahoa, Hawaii, on 28 October 2014
Denise Lagrimas is packing up her family's home in preparation for the oncoming lava flow.
"I don't want to stick around and just wait for it to come and take it," she said. "You just never know."
Though it remains unclear if the home will be in the lava's path, the Lagrimas family decided to move to a nearby town.
They have also expressed concern the lava will block roads and prevent them from reaching their jobs in a coastal town to the north.
"We didn't want to go anywhere where it's close enough where we would have to evacuate again," Ms Lagrimas said.
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Construction crews prepare Pahoa Village Road as lava flow from Mt Kilauea approaches the village of Pahoa (28 October 2014)It is thought that defences created outside Pahoa will not stem the lava flow
Kilauea on the Big Island has been erupting since 1983, but lava has recently burst forth from a new vent.
Two roads to Pahoa have been closed and a cemetery has already been overtaken by the lava.
The town's residents will be allowed to watch the destruction of their homes "as a means of closure", officials said.
And they will be allowed to take photos and video for insurance purposes.
"You can only imagine the frustration as well as... despair they're going through," said Hawaii County Civil Defense Director Darryl Oliveira.
Lava flow burns through thick vegetation and a fence Lava flow burns through thick vegetation and a fence
The lava flow from the Kilauea Volcano is seen crossing Apa'a Street/Cemetery Road in this U.S. Geological Survey (USGS) image taken near the village of Pahoa, Hawaii 25 October 2014The lava flow from the Kilauea volcano cuts off a street in Pahoa
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Can you stop lava?
At temperatures of about 1,000C, lava destroys whatever it touches. Its path is notoriously hard to predict.
The ability to impede or redirect lava largely depends on location, resources and luck.
Decades ago in Hawaii, the US attempted to bomb a lava flow, only to see the bomb craters refill. In Iceland, crews made use of billions of gallons of cold water around a nearby harbour to cool the lava in place. And barriers along Mount Etna in Italy redirected a flow away from a tourist area. But these attempts have been helped by a natural slowing or halting of lava eruptions.
"You have to be in a wealthy country with a lot at stake to even consider" lava diversion, Dr Shannon Nawotniak told the BBC, particularly given the volume of volcanic eruptions and the potential costs.
"You might buy yourself some time until the volcano stops itself."

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