Kaluapele

On the Island of Hawaiʻi, Kaluapele (the pit of pele or Pele) crowns the summit region of the volcano Kīlauea.

30 December 2021

Thursday, December 30, 2021. Episodic Pausings...

 Itʻs raining.  Not drizzle, not big paka ua, just a regular rain.  Yesterday was nice, but I chose to tend to kuleana rather than holosolo in the Park.  Finished proofreading a soon-to-be-published book.  307 pages, a few doses of eyedrops, and all, for now, seems correct.  But there are always the niggles...was I care full, did I really pay close attention, did I check all that shouldʻve been checked, etc. like that.  But at some point we surrender to probable imperfection.  
Plus, I thought I needed to write, because tomorrow is nishime day, and Saturday will likely be busy, and...and we are mindful that rampant virus is a cause for concern and a reason to be focussed on health.

The link below is to the Hawaiian Volcano Observatory website, where I may spend too much time obsessing over what, when, where.  The "Why" shall remain unknowable, and the Who, according to many, is Pelehonuamea.


Below, looking like a jagged continental range, are the ups and downs of Tilt for the past month.  At the lowest valleys, often we have a pause in eruptive activity.  Itʻs thought that when Tilt decreases, less magma is entering the plumbing system.  As internal magmatic pressure increases, Tilt increases as the mauna swells.  Then pele appears, pressure decreases, and Tilt goes down.
Unless.  Unless thereʻs an increase in supply of magma from depth, then Tilt may stay relatively constant, as the input equals outflow, and plumbing is more-or-less at equilibriumish.

As pele is erupted, naue ka honua...the earth trembles and shakes.  Seismographs allow us to see that vibrational shaking.  On HVO link, click Home on upper left.  A map will load. Click on Black Triangle at upper left of "Seismometer" label.


Seismograms for that instrument will appear.  Below is a 48 hour record.  Top half is tremor during eruption, bottom is during a pause.  Bigger darker jiggles are earthquakes.
A few days ago, during a pause, just one glowing spot on the floor of Halemaʻumaʻu.  Might be lights at Volcano House on far, dark rim, and we can make out a cloudy sky barely lit by sunset glow.


Below, December 27, ōlaʻi during a pause, then tremor picked up at 650p ish, just after above webcam image.
And by 9p, She had nearly refilled the loko ahi.  Note the purple, slightly cooler bounding walls of the lake.  West vent cone at lower right.


Next morning, we see that there had been a gush of lava, now cooling, that had overflowed the margins of the loko ahi.  Seems to happen that way.  Sometimes.  Pause, restart, gush, settle down, diminish, pause.


This morning, during a pause, the V1cam reveals only tiny flecks of pele on the surface of the loko ahi.


The KWcam confirms ka ua noe, a misty rain at Kaluapele.  The loko ahi occupies the lower right section of Halemaʻumaʻu.  



And below, from last night, a section of crustal skin on the floor of the lake foundered (turned over) and hot pele oozed out.  The still-cooling pad can be seen above.


The foregoing may make better sense coupled with todayʻs UPDATE:


And Earthquakes at the summit have been few and far between...those little yellow or orange dots:


During the pause on the 27th, below from KLynn at HVO.  The walls enclosing the loko are about 40 feet tall, to give you an idea of scale.  Blue fume from west vent, and that persistent little pond to its left.  A connection to the west vent?


These episodic pausings may bring back memories for those who were here during the spectacles that were high fountaining episodes of Puʻuʻōʻō in the mid-80s.


The table below, and additional info, can be found at the link above.

"High fountains" meaning 1,000+ feet.  I recall lauoho o Pele (Peleʻs hair) on my roof during Kona-ish winds, carried here from nearly 8 miles away.  The window at the head of my bed upstairs would vibrate (and wake me up) from the concussive force of the eruption.  I still shake my head in wonder.

As I still do when I recall Kīlauea Iki in 1959.  How lucky us!!!


OK then.  Iʻm off to clean and tidy.  PLEASE be mindful and safe this coming weekend.  Please.

And acknowledge the many healthcare workers throughout the land, busting their butts to care for the overwhelming number of CoViD patients.

Till next year!

Aloha, always, aloha.

BobbyC
maniniowali@gmail.com

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