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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Sat May 19, 2018 11:03 am 
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Dave's Run
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Excellent panorama of the lava flow section with the 4 active fissures from sunrise today. Its mote active than I thought.

https://www.instagram.com/p/Bi96SClA_2u ... ekalincoln

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Sat May 19, 2018 1:29 pm 
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HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT
U.S. Geological Survey
Saturday, May 19, 2018, 9:16 AM HST (Saturday, May 19, 2018, 19:16 UTC)

Kīlauea Volcano Lower East Rift Zone

Eruption of lava and ground cracking in the area of Leilani Estates subdivision continues.

Beginning yesterday and continuing overnight, the rate of lava eruption has increased. Fountaining is occurring at Fissure 17, and Fissures 16-20 have merged into a continuous line of spatter and fountaining. Flows from the consolidated Fissure 20 crossed upper Pohoiki road late yesterday afternoon and continued flowing southward. This morning, the wide flow is very active and is advancing at rates up to 300 yds per hour. A second flow from the same fissure complex is also flowing southward between Pohoiki and Opihikao Rds. The lava flow from Fissure 18 continues to advance more slowly. Fissure 17 and its flow are still active but the flow is advancing even more slowly. It is unknown whether the flows will continue to advance, or stop, and new lava flows are likely given the rate of activity seen at the rift zone.

For recent maps of activity, see: https://volcanoes.usgs.gov/volcanoes/ki ... _maps.html

Magma continues to be supplied to the lower East Rift Zone; however, the GPS instrument near Pu`u Honua`ula is no longer moving suggesting that the rift zone is no longer inflating in this area. Elevated earthquake activity continues, but earthquake locations have not moved farther downrift in the past couple of days.

USGS aerial video of the lava flow area, incredible!

Image

Kīlauea Volcano Summit

An explosion occurred around midnight last night at Halema'uma'u with the plume extending 10,000 ft a.s.l. Moderate trade winds were blowing to the southwest and noticeable ashfall was reported from downwind locations.

Additional explosive events that could produce minor amounts of ashfall downwind are possible at any time. Volcanic gas emissions at the summit remain high.

Image

Incidentally the vulcanologist noted that after the 30k event, the vent enlarged from 12 to 34 acres across.

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Sat May 19, 2018 5:53 pm 
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New phrase: "laze"

East Rift Zone Eruption - Update 4, 5/19/18 2PM - Laze Hazard
This is a Civil Defense Message for Saturday, May 19 at 2 in the afternoon.

Hawaiian Volcano Observatory continues to monitor active flows: in state forest reserve lands and heading in the general direction of MacKenzie State Park. No residents are threatened at this time. Residents should be aware that the lava flow is currently .8 miles from Highway 137 and, at the current rate, may cross the highway within the next four to seven hours.

Should the lava enter the ocean be aware of the laze hazard and stay away from any ocean plume.

Laze is when hot lava hits the ocean sending hydrochloric acid and steam with fine glass particles into the air.


Image

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Sat May 19, 2018 6:53 pm 
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The 2nd thing I learned today: "Kilauea is an explosive volcano". A very informative news briefing from USGS today.

https://www.facebook.com/khon2news/vide ... =2&theater

Basically he said that the volcano has actually been in explosive periods for half of its recorded history. And here we had been taught it was a quiet shield volcano.

The 3rd thing I learned was that the HVO building is not protected, and they abandoned ship to the U at Hilo. Which, probably says something about their own belief in the potential for explosive activity at the summit.

Speaking of, BOOM

Image

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Sun May 20, 2018 12:39 am 
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East Rift Zone Eruption - Update 7, 5/19/18 9PM- 630 Meters From Hwy 137
This is a Civil Defense Message for Saturday, May 19 at 9:00 in the evening.

Hawaiian Volcano Observatory continues to monitor active flows. The flow originating from fissure 20 has again split into two lobes, both are currently heading in the general direction of the 13 mile marker on Highway 137. Flow front #1 is approximately 630 meters from Highway 137 and moving about a 100 meters per hour. Flow front #2 is approximately 750 meters from Highway 137 and moving about the same speed. At the current rate, the lava flow may cross the highway within the next five to seven hours.

Highway 137 is closed between Kamaili Road and Pohoiki Road. Kamaili Road is closed between Highway 130 and Highway 137 due to a brush fire. Residents in the area have been evacuated.

Thats the road that goes along the coast right by the water. The spokeswoman for Volcanoes NP said today that there is a plan to bulldoze part of Chain of Craters road, that had been overrun by a previous lava flow, as an escape route.

Image

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Sun May 20, 2018 2:21 am 
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East Rift Zone Eruption - Update 8, 5/19/18 11PM
This is a Civil Defense Message for Saturday, May 19 at 11:00 in the evening.

Hawaiian Volcano Observatory continues to monitor active flows. Flow front #1 has crossed Highway 137 at the 13-mile marker and has entered the ocean. Flow front #2 is approximately 400 M from Highway 137. Highway 137 is closed between Kamaili Road and Pohoiki Road. Kamaili Road is closed between Highway 130 and Highway 137. All persons are asked to stay out of the area.
The lava has entered the ocean. Be aware of the laze hazard and stay away from any ocean plume.

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Sun May 20, 2018 12:32 pm 
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The lava flow made it to the sea last night cutting off a highway. I'm surprised it was a thick aa flow and not the quicker pahoehoe.

https://www.instagram.com/p/Bi_1-jBAvV- ... otogallery
https://www.instagram.com/p/BjAOtUIAcxm ... otogallery
https://www.instagram.com/p/BjAR4iwg2_i ... otogallery
https://www.instagram.com/p/BjAc0zUA0Tm ... otogallery

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Sun May 20, 2018 9:19 pm 
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Location: In the gurgling maw of the Pacific.
Pacific Tsunami Warning Center seismic timeline animation as of 5/20. 2800 quakes in about a month w one whopper.
https://youtu.be/yJ_tSOKP1r4


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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Mon May 21, 2018 12:50 pm 
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"flank moves 20 inches" :o

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Mon May 21, 2018 2:15 pm 
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I grabbed this photo from the USGS photo timeline earlier but it was credited to a private entity (Volcano Helicopters) and has been yanked off since. However here it is cropped. Its an aerial view over the Fissure 20 complex. The fountaining lava was labeled Fissure #22 and the lava rivers flowing down to the sea are amazing. I assume the standing properties on the right are where the live streaming of the flow are coming from.

Image

Image

USGS said #20s lava is falling into a big crack in the ground and they dont know where its going. My feeling is that #17 was the eastern extent and the magma is now going to backtrack westward and reactivate the older fissures in Leilani Estates. USGS confirmed the new runny pahoehoe matches the Puu Oo signature so this is the new stuff. Does that mean Haleamaumau's lava is following or does it get diverted somewhere?

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Mon May 21, 2018 2:47 pm 
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We're getting to witness the exact process that created the islands. That's pretty cool. I've learned quite a bit since this eruption started. For example I had no idea that Hilo was threatened back in 1935 and bombs were dropped in an attempt to divert the lava and clog lava tubes.


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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Mon May 21, 2018 4:54 pm 
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I also read there was an eruption during the War but it wasnt publicized because the govt. didnt want to give locations away to the Japanese. Like they didnt already know where Hawaii was.

Image


Image

These ash eruptions are becoming more frequent. I'm assuming they are being caused by the vent walls weakening and rocks falling in, which makes me also assume the vent support is getting weaker and weaker. At some point there should be a very large collapse which would make for a very large eruption.

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Mon May 21, 2018 5:19 pm 
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Fissure 6 reactivated with flows per USGS.
https://www.youtube.com/watch?v=p08wv14cv_A

The plumbing is backing up, I tells ya. BTW according to those maps, the only way the lava can get out in that area is thru the subdivision.

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Mon May 21, 2018 6:33 pm 
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Excellent flyby of the fountaining lava this morning by USGS.

Fissure fountains feed lava flows, as shown in this overflight video of the Fissure 20 complex on May 21, 2018, around 7:20 AM, HST. The video concludes with a view of the bifurcating lava channels that merge closer to the coast (and split again before ocean entry). The white laze plume is the site of ocean entry.

https://volcanoes.usgs.gov/observatorie ... e-2082.mp4

From this page: https://volcanoes.usgs.gov/volcanoes/ki ... ology.html

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 Post subject: Re: Hawaii volcano - drone footage
PostPosted: Mon May 21, 2018 6:44 pm 
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I had to watch that video on my laptop just to see it in HD. Amazing to see how far that river of lava flows!


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