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It's things like today's report that provides a sense of wonder...like, wonder where that flow is going underground?
quote:
The decrease in smoke and glow from the front of the June 27th flow over the past several days suggested that its vigor may have been declining. A helicopter flight yesterday, however, showed that the front of the flow had poured into a very large ground crack and was continuing to advance toward the northeast below ground, thus producing little smoke. The distribution of steam along the ground crack suggested that the flow front was 10.3 km from the vent (straight-line distance) at that time.
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http://hvo.wr.usgs.gov/maps/
If you look at the map, the flow as of the 12th was still on the Mauka side of the rift zone. As it continued to push forward it presumably flowed down the path of least resistance (i.e downhill). Even if it goes down into a crack, which likely goes parallel with the rift, then when/if the lava does come out again it should still be on the Mauka side of the rift? Or it could just back-up again and create a new path as usual. 3 steps forward, 2 1/2 steps back...
Maybe USGS will update with a new map soon, and we can continue to anxiously speculate.
“What you do speaks so loud that I cannot hear what you say.” – Ralph Waldo Emerson
“What you do speaks so loud that I cannot hear what you say.” – Ralph Waldo Emerson
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Google Earth shows a couple of large cracks following parallel to the rift. Just have to wait and see where Pele says "peekaboo ", unless USGS can get an infrared shot from a helicopter to give a clue.
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Hmmmm, a steaming ground crack... looks like it's filling a large crack.... Hope fully it's really DEEP and take a good long time to fill.
http://hvo.wr.usgs.gov/maps/uploads/image-96.jpg
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And it's updated today - showing the crack on the map as well:
http://hvo.wr.usgs.gov/maps/uploads/image-96.jpg
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Update - From Today: (*Snipped - More at link)
http://www.hawaiinewsnow.com/story/26351...tial-areas
KILAUEA VOLCANO, BIG ISLAND (HawaiiNewsNow) -
The June 27th lava flow, named for the date it began erupting, continues to advance to the northeast of its vent on the flank of Pu‘u ‘O‘o on Kilauea Volcano's East Rift Zone. As of Friday, August 22, the front of the flow was 6.6 miles northeast of the vent. According to the USGS Hawaiian Volcano Observatory (HVO) Scientist-in-Charge Jim Kauahikaua, the lava flow is not an immediate threat to residential areas or infrastructure downhill of the flow, but could become one in weeks to months if lava continues to advance.
HVO scientists, who mapped the flow during an overflight Friday morning, report that the flow was active along two fronts. The northern branch was advancing northeastward across fairly flat land, while the southern branch had flowed into a ground crack within the rift zone. By tracing the steam issuing from the crack, lava is inferred to have advanced 0.9 miles over the past four days, putting it 2.4 miles from the eastern boundary of the Wao Kele o Puna Forest Reserve.
The difficulty in forecasting the flow's exact path is that “downhill of the flow” can be affected by subtle variations in topography (shape and features of the ground surface), changes in lava supply (volume increases or decreases), and where and how lava enters or exits ground cracks along the rift zone.
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FYI: Update - (*Snipped - More at link/Bold by me)
http://bigislandnow.com/2014/08/22/civil...Bk.twitter
Hawai`i County Civil Defense Administrator Darryl Olivera told Big Island Now Friday that his agency will be holding community meetings in Pahoa to update the community on the June 27 lava flow that the USGS Hawaiian Volcano Observatory says could impact homes and infrastructure “in weeks to months.”
“We are scheduling community information meetings, so starting on Monday, we’ll be meeting in the Pahoa community at 6:30 p.m. in the Pahoa Community Center,” said Olivera. “We’re looking at having a series of meetings so for people who might not make one, they could come to others.”
The other community information meetings will be held on Tuesday, Aug. 26 and Wednesday, Aug. 27. The meeting time and location are the same as Monday’s session.
“It’s to give the community an opportunity to ask Dr. Jim (Kauahikaua) and myself, or others there, about the status and if they’re are any discussions of what is the possible impact,” Olivera explained.
Olivera’s agency, already stretched with overseeing restoration efforts following damage done by Tropical Storm Iselle, has been working with the HVO over the last several days to monitor the lava flow.
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http://hawaiitribune-herald.com/news/loc...ose-threat
"We're just making sure we are monitoring the situation and are being as prepared as we can to establish alternate (evacuation) routes," he (Darryl Oliveira) said.
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Go figure. I make a comment about the lava making 3 steps forward and 2 1/2 steps back, so Pele decides to push 20 steps forward and make headlines about creating a potential threat to communities.
This is an interesting and unusual dynamic to observe. Instead of the lava spreading out over a large flat area and loosing its gases and heat, it is now following a narrow path into a deep(?) crevice where it could be insulated and make much faster progress. As long as there isn't a sudden deflation, causing the lava supply to be shut off, there is now potential for a lava tube formation within the fissure system and really pushing it forward.
“What you do speaks so loud that I cannot hear what you say.” – Ralph Waldo Emerson
“What you do speaks so loud that I cannot hear what you say.” – Ralph Waldo Emerson
