Posted on 09/06/2014 7:10:26 AM PDT by winoneforthegipper
n the surveillance flight yesterday the ice-surface at Bárðarbunga was measured with the radar system of Isavia’s aircraft. The measurements show large changes on the ice-surface. Up to 15 m subsidence has occurred in the centre of the caldera, which corresponds to a volume change of 0.25 km3. The shape of the subsidence area is in accordance with the elevation of the caldera floor having lowered by that amount.
o Subsidence of this order has not been observed in Iceland since measurements of crustal movements started around the middle of last century.
o No signs of eruption or increased geothermal activity in the Bárðarbunga caldera are observed.
(Excerpt) Read more at mbl.is ...
Laki 1783 style is not as far fetched a result from this as once thought.
Well played!
(where did all the bowing smilie gifs go???)
That shouldn’t be all that much longer...
nope it’s located under the Vatna glacier.
So let me see if I understand this: The ice that covers an erupting (or at least very active) volcano has subsided 15 meters in the area over the mouth of the volcano, and they’re saying it’s because the volcano caldera itself has collapsed? So none of the ice, say, melted under the assault of 3000+ degree molten rock?
They are measuring the subsidence miles away from the edge of the glacier.
Most likely scenario is the collapse is due to it's magma chamber emptying into an ever expanding dyke.
Now then so the sheer weight of the glacier on top of Bardarbunga’s throat caused the 15 meter drop. However there is suggestions that while magma erupting now in the fissure event to the north is Bard's magma the EQ cycle in the volcano's caldera suggest that magma perhaps even virgin magma is streaming into it's storage pool.
So take a guess....the energy it took to so quickly rift the area is amazing...and somehow someway will be released in my opinion.
No the subsidence is directly under Bardarbunga’s caldera not at the fissure eruption.
In the surveillance flight yesterday a shallow, wide depression was observed on the surface of Dyngujökull, 10 km from the glacier edge. Another depression 6 km from the Dyngjujökull ice edge, which has been monitored over the last few days has deepened and is now 35 m deep.
Yes that is not what they are speaking of.
Here is the Civil defense update...
Note where they reference the caldera like depression later in the update.
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http://avd.is/en/?p=184
May you live with interesting Times.
(And ancient curse, from the (former) editors of Newsweek and the Washington Post...)
Hillary?
Weren’t there three?
May you live in interesting times.
May you come to the attention of the authorities.
and???
That is NOT GOOD AT ALL......
“emptying into an ever expanding dyke.”
Just for one moment, could we please STOP talking about Hillary??? ;)
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