This photo from video from the U.S. Geological Survey shows blue burning flames of methane gas erupting through cracks on Kahukai Street in the Leilani Estates neighborhood of Pahoa on the island of Hawaii during the overnight hours of Wednesday, May 23, 2018. When lava buries plants and shrubs, methane gas is produced as a byproduct of burning vegetation. Methane gas can seep into subsurface voids and explode when heated, emerging from cracks in the ground several feet away from the lava. (U.S. Geological Survey via AP)
The Associated Press
HONOLULU (AP) - Blue flames from burning methane are the latest natural phenomena being seen at the eruption of the Kilauea volcano in Hawaii.
Nighttime photos released Wednesday by the U.S. Geological Survey show the flames spouting from cracks in the pavement in the Leilani Estates neighborhood where the volcano has been gushing lava on the big island of Hawaii for the past three weeks.
The volcano produces methane when hot lava buries and burns plants and trees.
"The methane gas will flow through the ground, through the cracks that are already existing, and will come up wherever there's a place for them to come up," said Wendy Stovall, a scientists with the U.S. Geological Survey.
The methane can seep through cracks several feet away from the lava. It can also cause explosions when it's ignited while trapped underground. These blasts can toss blocks several feet away, Stovall said.
Hawaii County has ordered about 2,000 people to evacuate from Leilani Estates and surrounding neighborhoods since the eruption began on May 3.
The volcano has opened more than 20 vents in the ground that have released lava, sulfur dioxide and steam. The lava has been pouring down the flank of the volcano and into the ocean miles away.
The eruption has destroyed 50 buildings, including about two dozen homes. One person was seriously injured after being hit by a flying piece of lava.
Stovall said lava spatter from one of the vents was forming a wall that was helping protect a nearby geothermal plant.
Lava from that vent was shooting further into the air and producing the highest lava wall of all the vents, which was blocking molten rock from flowing north toward the plant.
Officials shut down Puna Geothermal shortly after the current eruption began.
On Tuesday, officials finished stabilizing wells that bring up hot liquid and steam to feed a turbine generator. A team from the Hawaii Emergency Management Agency and the company continued Wednesday to plug the wells to make sure the fluid inside doesn't move from one part of the well to the other, said Janet Snyder, a spokeswoman for Hawaii County.
Earlier this month officials removed a flammable gas called pentane from the plant to reduce the chance of explosions.
Tourism officials cheered news that a Norwegian Cruise Lines ship that tours the Hawaiian Islands would resume stopping in Kailua-Kona next week. Businesses catering to tourists on the cruise have taken a hit since the company suspended Big Island port visits after the eruption began.
The company said it would resume calling on Hilo, a town on the eastern side of the island closer to the lava, when conditions allow.
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This story has been corrected to show officials have finished stabilizing wells at the geothermal energy plant, but some still remain unplugged.
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Follow AP's complete coverage of the Hawaii volcano here: https://apnews.com/tag/Kilauea
This photo released Wednesday, May 23, 2018 by the U.S. Geological Survey shows blue burning flame of methane gas was observed in the cracks on Kahukai Street, during the overnight hours. The volcano produces methane when hot lava buries and burns plants and trees. Scientists say the methane can seep through cracks several feet away from the lava. ( U.S. Geological Survey via AP)
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Lava erupts from fissures in the Leilani Estates subdivision near Pahoa, Hawaii, Tuesday, May 22, 2018. Authorities were racing Tuesday to close off production wells at a geothermal plant threatened by a lava flow from Kilauea volcano on Hawaii's Big Island. (AP Photo/Jae C. Hong)
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This Wednesday, May 23, 2018, photo provided by the U.S. Geological Survey, the active fissure complex in Kilauea Volcano's lower East Rift Zone near Pahoa, Hawaii. The volcano produces methane when hot lava buries and burns plants and trees. Scientists say the methane can seep through cracks several feet away from the lava. ( U.S. Geological Survey via AP)
The Associated Press
This Wednesday, May 23, 2018 photo shows a helicopter overflight of KÄ«lauea Volcano's lower East Rift Zone near Pahoa, Hawaii. The volcano produces methane when hot lava buries and burns plants and trees. Scientists say the methane can seep through cracks several feet away from the lava. ( U.S. Geological Survey via AP)
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A property is devastated by lava as fissures continue to spew lava in the Leilani Estates subdivision near Pahoa, Hawaii, Tuesday, May 22, 2018. Authorities were racing Tuesday to close off production wells at a geothermal plant threatened by a lava flow from Kilauea volcano on Hawaii's Big Island. (AP Photo/Jae C. Hong)
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A resident takes photos as fissures spew lava in the Leilani Estates subdivision near Pahoa, Hawaii, Tuesday, May 22, 2018. Authorities were racing Tuesday to close off production wells at a geothermal plant threatened by a lava flow from Kilauea volcano on Hawaii's Big Island. (AP Photo/Jae C. Hong)
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Heath Dalton removes his mask as lava erupts from fissures in the Leilani Estates subdivision near Pahoa, Hawaii, Tuesday, May 22, 2018. Authorities were racing Tuesday to close off production wells at a geothermal plant threatened by a lava flow from Kilauea volcano on Hawaii's Big Island. (AP Photo/Jae C. Hong)
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Fissures spew lava in the Leilani Estates subdivision near Pahoa, Hawaii, Tuesday, May 22, 2018. Authorities were racing Tuesday to close off production wells at a geothermal plant threatened by a lava flow from Kilauea volcano on Hawaii's Big Island. (AP Photo/Jae C. Hong)
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Heath Dalton, right, and Jim Carpenter take pictures as fissures spew lava in the Leilani Estates subdivision near Pahoa, Hawaii, Tuesday, May 22, 2018. Authorities were racing Tuesday to close off production wells at a geothermal plant threatened by a lava flow from Kilauea volcano on Hawaii's Big Island. (AP Photo/Jae C. Hong)
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Fissures spew lava in the Leilani Estates subdivision near Pahoa, Hawaii, Tuesday, May 22, 2018. Authorities were racing Tuesday to close off production wells at a geothermal plant threatened by a lava flow from Kilauea volcano on Hawaii's Big Island. (AP Photo/Jae C. Hong)
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Jim Carpenter take pictures of lava erupting from fissures in the Leilani Estates subdivision near Pahoa, Hawaii, Tuesday, May 22, 2018. Authorities were racing Tuesday to close off production wells at a geothermal plant threatened by a lava flow from Kilauea volcano on Hawaii's Big Island. (AP Photo/Jae C. Hong)
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Lava erupts from fissures in the Leilani Estates subdivision near Pahoa, Hawaii, Tuesday, May 22, 2018. Authorities were racing Tuesday to close off production wells at a geothermal plant threatened by a lava flow from Kilauea volcano on Hawaii's Big Island. (AP Photo/Jae C. Hong)
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A a geothermal plant is seen from the Leilani Estates subdivision near Pahoa, Hawaii, Tuesday, May 22, 2018. Authorities were racing Tuesday to close off production wells at the plant threatened by a lava flow from Kilauea volcano on Hawaii's Big Island. (AP Photo/Jae C. Hong)
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