Mauna Loa erupting

[kalianna]

I thought that each had its own magma source. No?

[Durian Fiend]

I thought that each had its own magma source.  No?

That’s what I’ve heard. They are not connected.

[TomK]

Yes, that was the opinion some time ago, the two were independent. However, some time ago I posted a scientific paper that suggested otherwise, and MyManoa, albeit under a different username, went nuts and accused me of all sorts of things rather than discussing the subject.

Now both volcanoes stop erupting at the same time. Is that simply a coincidence?

[MyManao]

I thought that each had its own magma source.  No?

One source, the 'hot spot,' which is assumed to be the upwelling of material created by convection currents in the Earth's mantle. 

Two separate volcanoes, in that each has a different petrological signature; the rock's composition is unique to each. That by most accounts is enough to make it hard to image a direct hydraulic connect. Some studies speak in terms of a sympathy that has months of lag between the two. I've heard others that suggest the point of divergence shallow enough to have a hydraulic connect, but the petrology..

Ever noticed there are two island chains running from here north? Where Mauna Loa and Hualalai are the beginnings of one, and Kilauea and Mauna Kea another? Single deep source, all sorts of funny business between here and there..
 
I kind of wonder if it's not the hydraulic system but the relationship between the land forms themselves. Mauna Loa was budging, and then deflated. Maybe the stresses exerted on Kilauea relaxing allowed Kilauea's summit to relax, which in turn allowed the magma column to fall. And even if it fell just a bit, that eruption in Halemaumau was barely there at all, so even the minimal drop in stress could lower it enough to hide the eruption from view. Maybe?

[TomK]

Well, one of my points was that you became enraged when someone pointed out the possibility that Kilauea and Mauna Loa activity is connected. At least now you're posting stuff that isn't an insulting and outrageous rant, so I'll take that as an improvement in your behavior and now at least you admit there is a possible connection between the two volcanoes. It took a long time to get here but now it's done - an admittance that you may have been wrong.

[MyManao]

Well, one of my points was that you became enraged when someone pointed out the possibility that Kilauea and Mauna Loa activity is connected. At least now you're posting stuff that isn't an insulting and outrageous rant, so I'll take that as an improvement in your behavior and now at least you admit there is a possible connection between the two volcanoes. It took a long time to get here but now it's done - an admittance that you may have been wrong.

That's rich.. you're frickin' bonkers but there's nothing new in that.. thanks for the laugh.

[TomK]

Well, one of my points was that you became enraged when someone pointed out the possibility that Kilauea and Mauna Loa activity is connected. At least now you're posting stuff that isn't an insulting and outrageous rant, so I'll take that as an improvement in your behavior and now at least you admit there is a possible connection between the two volcanoes. It took a long time to get here but now it's done - an admittance that you may have been wrong.

That's rich.. you're frickin' bonkers but there's nothing new in that.. thanks for the laugh.

How am I bonkers? Is it because I'm wrong in that you haven't changed your behavior or that you're sticking to your opinion there are no connections between Mauna Loa and Kilauea? Remember, you're the one who claimed I was a janitor and not a scientist.  I'm now asking you scientific questions and you've already gone ad hominem and called me bonkers.

[randomq]

Get a room.

[Ccat]

Get a room.

Absolutely!  I am tired of hearing so much personal bickering.

[Durian Fiend]

 
I kind of wonder if it's not the hydraulic system but the relationship between the land forms themselves. Mauna Loa was budging, and then deflated. Maybe the stresses exerted on Kilauea relaxing allowed Kilauea's summit to relax, which in turn allowed the magma column to fall. And even if it fell just a bit, that eruption in Halemaumau was barely there at all, so even the minimal drop in stress could lower it enough to hide the eruption from view. Maybe?

That sounds a lot like the position of USGS.  They said yesterday:  “The volcanoes are not directly connected, but might ‘feel’ one another via stress effects,” the U.S. Geological Survey [color=var(--color-signal-editorial,#326891)]said on Twitter[/color]. “Mauna Loa’s eruption could have allowed Kilauea to ‘relax.’ That said, Kilauea’s eruption was already pretty tenuous, occurring at very low rates.”