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+--- Thread: Pu'u O'o inflation (/showthread.php?tid=19312)
RE: Pu'u O'o inflation - Wao nahele kane - 05-02-2018
Interesting, seems seismic cluster activity has advanced towards Kapoho. Will we see a similar event to that of the 1960 Kapoho eruption near the same area?
RE: Pu'u O'o inflation - SBH - 05-02-2018
Update ten minutes ago:
Summary: Intrusion of magma into the lower East Rift Zone of Kilauea continues.
Overnight, earthquakes continued at a high rate in the area of the rift zone from Highway 130 eastward towards Kapoho. Many events were felt by residents and there have been reports of nearly constant ground vibration in some areas. There is a general trend of migration of seismicity eastward.
An outbreak of lava in a new location along the East Rift Zone is possible but not certain. Based on the location of current seismicity, the region downrift of Pu’u O’o, including the area east of Highway 130, remains the most likely location should an outbreak occur.
Hawaii County Civil Defense and the USGS Hawaiian Volcano Observatory advise residents of the Puna District to remain alert, review individual, family, and business emergency plans, and watch for further information about the status of the volcano. Hawaii County Civil Defense messages may be found at http://www.hawaiicounty.gov/active-alerts/.
RE: Pu'u O'o inflation - Frankie Stapleton - 05-02-2018
I think we here in lower Puna are SOOO lucky once again! The magma in Pu'u 'O'o crater had to go somewhere and an intrusive event -- which is movement of magma underground without erupting through to the surface -- is the best possible outcome, IMO. It was rockin' and rollin' at my home in Nanawale overnight, so much so that I gassed up the car and put a go bag together. My animals were freaked out and I'm sure the neighbors (who have oodles of youngsters) were too, not having lived here but a few years. The tremors were coming through just minutes apart and often created booming sounds, like bombs. Poor kids, poor moms, probably didn't get much sleep last night. But it's quieted down this morning....just a few vibrations letting us know Tutu Pele was here[8)]
RE: Pu'u O'o inflation - HereOnThePrimalEdge - 05-02-2018
similar event to that of the 1960 Kapoho eruption near the same area?
Here's a history of the 1960 Kapoho eruption from USGS:
https://volcanoes.usgs.gov/volcanoes/kilauea/geo_hist_kapoho.html
Portion of Hawaii’s drinking water that comes from underground wells : 9/10
Gallons of raw sewage that leak into the ground from Hawaii cesspools each day : 53,000,000 - Harper's Index
RE: Pu'u O'o inflation - Wao nahele kane - 05-02-2018
HOTPE,
Yep, the route and frequency of the seismic activity seems eerily similar to that of the early activities of '60 event.
RE: Pu'u O'o inflation - 2liveque - 05-02-2018
Sounds eerily familiar to the Kapoho episode of 1960.
RE: Pu'u O'o inflation - Kapoho Joe - 05-02-2018
Okay, you can all feel free to put the ixnay on anymore 'Kapoho' talk...
RE: Pu'u O'o inflation - glinda - 05-02-2018
Mick Kalber (Tropical Visions Video) posted some aerial footage taken shortly after the collapse event, and subsequent very short lived eruption to the West (mauka) side of Puu Oo.. that can be seen here:
http://www.bigislandvideonews.com/2018/05/02/video-flyover-puu-oo-fissure-as-usgs-monitors-earthquakes/
This is a great video in that because of the inclement weather we have very little information from the eruption site. In the video you can see that there was an up rift eruption, though it was very short lived, and a broad blanket of ash around the entire Puu Oo area. And the images of the still rising column of ash coming out of the Puu Oo crater are great.
RE: Pu'u O'o inflation - Obie - 05-02-2018
I actually have not felt any earthquakes in Kapoho. Just checked the crack that runs diagonally across my property and no steam or heat.Until about 15 years ago I had steam vents in my yard !
Latest earthquakes seem to be between Opihikao and Pohoiki.
My earthquake indicator has not toppled over either. (A dozen or so stones balanced on top of each other )
RE: Pu'u O'o inflation - glinda - 05-02-2018
For those playing armchair volcanology…
The most interesting thing I see this morning is that the GPS line across Puu Oo that was the one data source pointing to the changes we are now witnessing long before they began, is still extending at a very rapid pace. Where, if the ongoing event were to be limited to what we’ve already seen, the collapse of the lava lake and subsequent relatively small and slow intrusion into the eastern extension of the rift, I would have thought that the area around Puu Oo would be deflating, and as such the line being measured getting shorter. In fact I had expected this line to contract substantial. But no, according to this information, as seen here:
https://volcanoes.usgs.gov/vsc/captures/kilauea/puuoo_crater_gps_year.png
the line continues to lengthen. And, if anything, is actually still extending faster over time. This, along with the continuing over inflated summit and heightened level of the Halemaumau lava lake, suggests the ongoing intrusion into lower Puna may only be a harbinger of more to come.
On another, more focused on what is happening currently in Lower Puna note…
As I did yesterday when I suggested comparing the STCD station out at Puu Oo
https://volcanoes.usgs.gov/vsc/captures/kilauea/STCD-48h.png
with the KLUD station on the South of Leilani
https://volcanoes.usgs.gov/vsc/captures/kilauea/KLUD-48h.png
to see the migration of the intrusion from one to the other in the hours proceeding my post.
Today I would add the PHOD station
https://volcanoes.usgs.gov/vsc/captures/kilauea/PHOD-48h.png
which is at the geothermal plant, as a third part of the evolving story.
Looking at that station one can see that the intrusion is now most pronounced there rather than how it was earlier in Leilani and earlier still at Puu Oo.
Though, even the activity at PHOD looks to be waning. The humbug is there are no other seismic stations available online further east. So the question remains unanswerable as to whether this is because the intrusion has moved further to the east or it is dying out? The one thing that might suggest an answer is the earthquakes themselves, and at the time of this writing they continue but have not migrated any further east than the PHOD station.
The odd thing about the earthquakes, as seen on HVO’s website here
https://volcanoes.usgs.gov/observatories/hvo/hvo_earthquakes.html
is that several of them are now being reported as having depths in the negative numbers. Such as this event that happened at the very eastern end of Leilani just before 11am this morning:
Coordinates:-154.894165, 19.4666672
Depth: -0.5 km (-0.3 mi)
Magnitude: 1.83
Date:2018-05-02 10:59:41 local
2018-05-02 20:59:41 UTC
That’s awfully close to the surface!