twitter:janinekrippner twitterde op vrijdag 20-02-2015 om 18:46:57 Lava break out/squeeze out at Holuhraun, Iceland. 17/18 Feb #volcano http://t.co/vLOc7XdTR8 http://t.co/Y8RdcmFDGb reageer retweet
twitter:janinekrippner twitterde op vrijdag 20-02-2015 om 18:57:22 FLIR Thermal image showing one active vent at Holuhraun remaining http://t.co/K0je3ueUuP #volcano http://t.co/QuesMzBWw3 reageer retweet
twitter:volcan01010 twitterde op maandag 23-02-2015 om 15:32:17 #Bardarbunga EQs seem to be fading out. Last EQ >M5 was 8 Jan. Last EQ >M3 was Saturday afternoon. http://t.co/L7MR6tZgbO #Holuhraun reageer retweet
twitter:Sim0nRedfern twitterde op dinsdag 24-02-2015 om 08:58:39 #holuhraun #bardarbunga standing out dark in Iceland's central highlands http://t.co/mXgXsaa1XB reageer retweet
haha, mooi stukquote:Op woensdag 25 februari 2015 12:34 schreef LTVDK het volgende:
Mede met dank aan dit topic en de tips van bwt heb ik een special geschreven over deze pracht der natuur: Bárdarbunga
(jaja, ik kom het hier even spammen )
Teruggespamdquote:Op woensdag 25 februari 2015 15:20 schreef Frutsel het volgende:
[..]
haha, mooi stuk
spam ook eens andersom
goed bezig!quote:Op woensdag 25 februari 2015 12:34 schreef LTVDK het volgende:
Mede met dank aan dit topic en de tips van bwt heb ik een special geschreven over deze pracht der natuur: Bárdarbunga
(jaja, ik kom het hier even spammen )
twitter:HTuffen twitterde op woensdag 25-02-2015 om 16:47:07 Dwindling seismic activity at #Bárdarbunga reaches a new low: now no M>2 events in last 48 hours http://t.co/cU3nTAZky8 reageer retweet
Voor de videotwitter:jonfr500 twitterde op vrijdag 27-02-2015 om 20:16:27 No lava flow visible in Holhraun main crater. http://t.co/DGLBTbhcAM reageer retweet
twitter:almannavarnir twitterde op zaterdag 28-02-2015 om 13:13:36 The volcanic eruption in Holuhraun has come to an end. See http://t.co/hvpF3n1DcD og á Ísl http://t.co/2RxK5pscmD #bardarbunga #Holuhraun reageer retweet
twitter:Sim0nRedfern twitterde op zaterdag 28-02-2015 om 13:10:54 #Holuhraun becomes a memory http://t.co/yRCpQSVUbd - thanks for the memory! http://t.co/W87wj9hnxE reageer retweet
Als het een voorspellende gave is zou ik een hoop wereldproblemen kunnen oplossen .quote:Op zondag 1 maart 2015 00:28 schreef Frutsel het volgende:
Heeft fok net zijn special klaar kapt dat ding dr mee
Prutsvulkaan
Ik had niet voor niks afgesloten met een onheilspellende zinquote:Op zondag 1 maart 2015 18:08 schreef bwt het volgende:
Nu dat ding dicht zit kan er weer wat druk worden opgebouwd..............
quote:Maar voorlopig lijkt Bárdarbunga zich een beetje te kalmeren. Al kan het natuurlijk ook zijn dat hij druk aan het opbouwen is...
twitter:AlisonGraetting twitterde op maandag 09-03-2015 om 19:54:07 Nice annotation of #Holuhraun Crater images from IMO team by @eruptionsblog http://t.co/YTjpYblTvH http://t.co/iR0YXGk9ar reageer retweet
quote:Volcanologist: Bárđarbunga Caldera Starts Rising Again
Volcanologist Haraldur Sigurđsson, who predicted the end of the Holuhraun eruption with remarkable accuracy, wrote on his blog yesterday that there are indications that the caldera of Bárđarbunga volcano, which fed the Holuhraun eruption, has begun rising again.
The rising of the caldera could mean that magma is accumulating in the magma chamber, building pressure, which might eventually lead to another eruption.
“When the subsidence [of the caldera] stopped, the curve of the position of the GPS sensor in Bárđarbunga had become horizontal. In the accompanying graph from the Icelandic Met Office’s website a blue curve shows none or insignificant horizontal movement on the surface of Bárđarbunga from February 7 to March 7,” Haraldur writes.
“I added a red line for comparison [see Haraldur’s blog]. It clearly shows that in the past days, the GPS sensor has started rising again. It can be caused by two things: (A) The ice below the sensor is flowing into the depression … (B) The caldera has started rising again because magma from the mantle is flowing into the magma chamber below Bárđarbunga.”
“I’m inclined to believe the latter explanation, but time will tell. If (B) is correct, it is likely that the flow of magma from the depths into the magma chamber will take many years before it reaches the position which Bárđarbunga had before the eruption which began in 2014,” Haraldur concluded.
Other scientists have predicted that Bárđarbunga will erupt again in the near future and that the eruption in Holuhraun was the first in a series.
The eruption carried on while the caldera subsided and magma flowed out of the magma chamber and into the intrusive dike connecting Bárđarbunga, which lies under Vatnajökull glacier, with Holuhraun north of the glacier.
Using data from a GPS sensor in the caldera, Haraldur and his grandson Gabríel Sölvi calculated the rate of the subsidence and when it would stop, which would mean that magma had stopped flowing into the intrusive dike and hence that the eruption had ended.
They had predicted that this would happen on March 4, while the eruption ended on February 27—they were off by five days.
Forum Opties | |
---|---|
Forumhop: | |
Hop naar: |