[ACTUEEL] Vulkanen IJsland #20: Uitbarsting Bardarbunga

quote:

Op zondag 19 oktober 2014 16:53 schreef aloa het volgende:

[..]

vandaag weer eentje op 100 meter diep (5.0)

quote:

Op zondag 19 oktober 2014 20:23 schreef Resistor het volgende:
Je zou denken dat de caldera in aan het storten is.

Zijn er nou geen recente plaatjes van de ijskap?

twitter:

volcan01010 twitterde op woensdag 22-10-2014 om 14:41:49 #Bardarbunga Science board: http://t.co/xVz3Q0IsYM Still subsiding. 10 EQs > M4 in last 2 days. #Holuhraun lava runs 'with great force'. reageer retweet

quote:

• Scientists in Holuhraun confirm that the volcanic eruption continues with similar intensity as last few days. The lava river runs from the northern end of the crater to the east with great force.
• Seismic activity in Tungnafellsjokull glacier had decreased but activity in Bardarbunga continues to be strong. At 8:36 Tuesday morning an M5,3 earthquake was measured in northern Bardarbunga. Over the last two days ten other earthquakes bigger then M4,0 were recorded in Bardarbunga and in total 31 earthquakes bigger then M3,0.
• Smaller earthquakes are measured in the dyke, most of them are in the area north of Dyngjujokull leading to the eruption site in Holuhraun.
• The GPS station in the centre of Bardarbunga show that the subsidence of the caldera continues with similar rate as before.
• GPS measurements show minor movements. No great changes were detected.
• No change was detected in water monitoring that cannot be explained by changing weather.

Holuhraun BSF

twitter:

uni_iceland twitterde op donderdag 23-10-2014 om 12:04:12 EO-1 ALI satellite image from NASA & USGS of the lava on October 21st. White line shows lava extent http://t.co/EywUYzR2ZB reageer retweet

twitter:

gislio twitterde op zaterdag 25-10-2014 om 12:49:05 Spectacular picture of #Holuhraun #eruption from @NatGeo http://t.co/TB94hpBqHE http://t.co/ZUE44HaQUm reageer retweet

quote:

During the past 48 hours total (when this is written) of 69 earthquakes with magnitude of larger than 3,0 have happened in Bįršarbunga volcano. Total number of earthquakes in that same time period is 286 earthquakes (when this is written). Since yesterday it appears that earthquake activity is increasing in Bįršarbunga volcano at the moment, there is minor fluctuation in activity every few hours. I do not know why that is happening.

twitter:

uni_iceland twitterde op vrijdag 24-10-2014 om 11:39:02 Map of #Holuhraun, or maybe we should use #Nornahraun. It keeps growing and covers just over 63 km2 #Bardarbunga http://t.co/gbnUowZS0P reageer retweet

twitter:

eruptionchaser twitterde op zaterdag 25-10-2014 om 14:00:11 @eruptionsblog @subglacial for any concerned by quake logs, IMO clearly go off shift at midnight and on shift at 9am! http://t.co/Q5O4zh6t3W reageer retweet

twitter:

uni_iceland twitterde op maandag 27-10-2014 om 10:57:23 Eruption glow & #auroras taken NE of the eruption Oct 21 Credit Ronni Grapenthin #Bardarbunga #Nornahraun #Iceland http://t.co/S6AjpdsxQP reageer retweet

twitter:

lava_ice twitterde op dinsdag 28-10-2014 om 01:42:45 #bardarbunga heat flow is thought to be increasing; caldron in SE part of ice is deepening according to latest report http://t.co/Y2Jaoz3uie reageer retweet

quote:

Subsidence of the caldera happens without any earthquake activity most of the time. According to Icelandic Met Office and others (pdf file here), the caldera has now dropped some 40 meters. New cauldrons have been forming along the caldera rim and older ones (that I did not know about until today) have been getting deeper according to measurements from Friday (24-October-2014). The new and older cauldrons appear clearly on images that can be found here (text is in Icelandic). GPS data is showing minor inflation in the dyke that is currently erupting, suggesting that more magma is flowing into it then is erupting from it.

twitter:

uni_iceland twitterde op dinsdag 28-10-2014 om 11:14:54 #Bardarbunga continues to subside, –40m so far. Signs of increased geothermal activity. Credit Žórdķs Högnadóttir http://t.co/NZFrRN2cp8 reageer retweet

quote:

Op dinsdag 28 oktober 2014 13:58 schreef GekkePoes het volgende:
http://www.livefromiceland.is/webcams/bardarbunga-2/

Heeft die camera het te warm gekregen?

[ afbeelding ]

twitter:

IcelandInUS twitterde op dinsdag 28-10-2014 om 13:16:39 #nature can make you feel VERY small @mblfrettir pic of @LandRoverUSA @LandRover at #Holuhraun http://t.co/b8dBj6Ui8o http://t.co/voDYcVnNzf reageer retweet

twitter:

alexwitze twitterde op dinsdag 28-10-2014 om 16:35:04 "We don't see an end in sight" -- #Holuhraun eruption could last for months or years. By me http://t.co/RfC7t6RyKD reageer retweet

twitter:

alexwitze twitterde op dinsdag 28-10-2014 om 16:37:57 Icelanders are calling the sulfur #Holuhraun haze the Mist. As they did in the 1783-84 Laki eruption. http://t.co/3vMvR4faas #Bardarbunga reageer retweet

quote:

• The volcanic eruption in Holuhraun continues with similar intensity. The lava field is now 65,7 squere kilometres.
• Seismic activity in Bardarbunga continues to be strong. 200 earthquakes have been detected in the caldera over the last 48 hours. Just over ten earthquakes were bigger then magnitude M4,0. The largest one was M5,3 tonight at 01:30.
• The GPS station in the centre of Bardarbunga show that the subsidence of the caldera continues with similar rate as it has done over the last few weeks. The total depression in the caldera is now about 42 meters.
• Energy of the geothermal areas in Bardarbunga is now few hundred megawatts and the melting of water is estimated around 2 cubic meters per. second. The water goes into Skjįlfandafljót og Jökulsį į Fjöllum. The flow is too small to effect the total water flow of the rivers.
• Around 20 smaller earthquakes are detected in the dyke and at the eruption site in Holuhraun, all around magnitude M1,0 and smaller.
• GPS measurements in the active area show minor changes.

A recommendation by the Scientific Advisory Board of the Icelandic Civil Protection:
The Scientific Advisory Board concludes that it is necessary to increase monitoring of SO4 so it is possible to evaluate the concentration of sulphuric acid particles and its potential influence on health.

twitter:

eruptionchaser twitterde op maandag 03-11-2014 om 07:15:18 @subglacial Big quake... correlated this time with big GPS 'up' spike.. http://t.co/N3xwnPHhE0 reageer retweet

twitter:

subglacial twitterde op maandag 03-11-2014 om 12:35:49 #Bįršarbunga #Holuhraun. Latest official update. Basically, everything is at a steady-state. http://t.co/lMMHhiCwwb reageer retweet

quote:

• The volcanic eruption in Holuhraun continues with similar intensity.
• Seismic activity in Bardarbunga continues to be strong. Since Friday, 31. October, 207 earthquakes have been detected in the caldera. Two earthquakes were bigger then M5,0, on 31. October at 21:32 an M5,2 earthquake was detected and M5,3 on 2. November at 16:02. In total 27 earthquakes between M4 and 5 were detected and 8 between M3 and 4.
• The GPS station in the centre of Bardarbunga show that the subsidence of the caldera continues with similar rate as it has done over the last few weeks.
• Energy of the geothermal areas in Bardarbunga is now few hundred megawatts and the melting of water is estimated around 2 cubic meters per. second.
• Only 17 smaller earthquakes were detected in the dyke and at the eruption site in Holuhraun since Friday, there off ten from midnight today.
• GPS measurements in the active area show minor changes.
•

twitter:

IcelandMag twitterde op dinsdag 04-11-2014 om 12:46:28 Calm winds and cold weather create a Holuhraun pollution blanket almost all over #Icelandhttp://t.co/aOFSYltKcB http://t.co/JGUrgYSSnH reageer retweet

quote:

Op dinsdag 4 november 2014 19:03 schreef stan12 het volgende:
Ik zie in de weersvoorspellingen hogedrukgebieden die boven IJsland komen te liggen. Dit lijkt me toch vrij ernstig met die enorme hoeveelheid gassen die vrijkomen.

twitter:

uni_iceland twitterde op dinsdag 04-11-2014 om 20:26:27 The main vent today with it's boiling lava and the gas plume. The new lava field covers 67 km2 and is ~1 km3. http://t.co/OwecoospQ6 reageer retweet

twitter:

uni_iceland twitterde op dinsdag 04-11-2014 om 20:23:40 Lava outbreak today from #Holuhraun eruption. Credit: Sveinbjörn Steinžórsson #Bardarbunga http://t.co/TOZrI9t36v reageer retweet

twitter:

uni_iceland twitterde op woensdag 05-11-2014 om 00:12:02 New lava flowing over snow. The moon appears reddish in the volcanic mist. Pic from #Holuhraun taken tonight http://t.co/htIdsCdBB4 reageer retweet

twitter:

uni_iceland twitterde op woensdag 05-11-2014 om 00:11:07 Very pretty! http://t.co/b0W5z9x0do reageer retweet

twitter:

uni_iceland twitterde op woensdag 05-11-2014 om 00:10:20 Our field geologists sampling the #Holuhraun lava tonight http://t.co/tW3WDjcRnf reageer retweet

twitter:

uni_iceland twitterde op woensdag 05-11-2014 om 11:05:05 Awesome! Lava spatter generated by powerful twister above the lava river. Video taken on 15/10/14 by M. Riishuus. https://t.co/m1Y8tQt6xv reageer retweet

quote:

• The volcanic eruption in Holuhraun continues with similar intensity. Driving conditions are becoming hard in the area around the eruption site and on the road into the area making observation of the eruption more difficult for the scientists in the field.
• Seismic activity in Bardarbunga continues to be strong. Since Monday, the 3. of November, 200 earthquakes have been detected in the caldera. The largest measured earthquake was on Tuesday, November 4. at 20:45 of M4,8. A total of 15 earthquakes were of sizes between M 4 and 5; 15 of sizes between M3 and 4. No earthquakes larger than M5 have been observed since Sunday.
• The GPS station in the centre of Bardarbunga shows that the subsidence of the caldera continues with similar rate as it has been doing over the last few weeks. Measurements carried out from the air show that the greatest subsidence of the Bįršarbunga caldera has now reached 44 meters.
• Energy of the geothermal areas in Bardarbunga is now few hundred megawatts and the melting of water is estimated around 2 cubic meters per. second. Aerial observations on Tuesday November 4th show that the geothermal cauldrons in Bįšarbunga have deepened by 5-8 meters over the past 11 days.
• Only 30 smaller earthquakes were detected in the dyke and at the eruption site in Holuhraun since Monday, none larger than M2,0.
• GPS measurements in the active area show minor changes, there are however signs of a slight decrease in the subsidence towards the Bįršarbunga volcano.

twitter:

volcan01010 twitterde op woensdag 05-11-2014 om 18:53:38 #Bardarbunga Science board: http://t.co/xVz3Q0IsYM Total subsidence 44m. Geothermal cauldrons melted 5-8m in 11 days. #Holuhraun continues. reageer retweet

twitter:

janinekrippner twitterde op woensdag 05-11-2014 om 22:27:26 Steam rising from Holuhraun lava field, Iceland. Caldera subsidence now 44 m, 1.1 - 1.2 km³ http://t.co/vLOc7WWisy http://t.co/PRRP64eM0U reageer retweet

twitter:

janinekrippner twitterde op donderdag 06-11-2014 om 11:46:26 Current Holuhraun activity: Intensity continues, difficult conditions for scientists http://t.co/iqnT3Zevus http://t.co/6E1U0xO3W4 reageer retweet

twitter:

TravelsisUs twitterde op vrijdag 07-11-2014 om 10:01:09 A pink #sunset over #Holuhraun volcanic eruption in #Iceland taken from a helicopter http://t.co/kRtXGeHph7" #Travels http://t.co/MX6mdm5eey reageer retweet

twitter:

volcanofile twitterde op zondag 09-11-2014 om 14:55:16 Current SO2 levels in & around #Reykjavik considered 'unhealthy for sensitive individuals’ http://t.co/5K78XocTvL http://t.co/4ZrVF4cLd8 reageer retweet

twitter:

uni_iceland twitterde op zondag 09-11-2014 om 14:26:36 The #Holuhraun eruption lava field now covers just over 70 km2 http://t.co/7r6rLTTWyk reageer retweet

twitter:

almannavarnir twitterde op maandag 10-11-2014 om 12:24:50 Notes from the Scientific Advisory Board are on our page http://t.co/ujIQlY9cFM #Bardarbunga reageer retweet

quote:

• The volcanic eruption in Holuhraun continues with similar intensity. The lava field is now 70 square kilometres.
• Seismic activity in Bardarbunga continues to be strong. Since Friday, 7. November, around 200 earthquakes have been detected in the caldera. The biggest one was M5,2 yesterday at 21:19. In total 20 earthquakes between M4,0 and M5,0 were detected since Friday.
• The subsidence of the Bardarbunga caldera continues with similar rate as last few weeks.
• In total 20 smaller earthquakes were detected in the dyke and at the eruption site in Holuhraun since Friday.
• Displacements of GPS stations show a slower subsidence towards Bardarbunga.

twitter:

fencingtobba twitterde op maandag 10-11-2014 om 09:05:00 Check out "Holuhraun Volcano, Iceland, November 2014" by @jongustafsson on Vimeo http://t.co/S5yFP69TVA #Vimeo #holuhraun #volcano reageer retweet

Holuhraun Volcano, Iceland, November 2014 door Jon Gustafsson

twitter:

uni_iceland twitterde op dinsdag 11-11-2014 om 19:10:49 [1] For those following the subsidence of #Bardarbunga may have seen the uplift of 1.5m today. The GPS monitor… http://t.co/N9rNn1TZYa reageer retweet

twitter:

uni_iceland twitterde op dinsdag 11-11-2014 om 19:12:30 … [2] was being lifted by scientists because of heavy snow. #Bardarbunga is still subsiding at a similar rate as before. reageer retweet

quote:

• The volcanic eruption in Holuhraun continues with similar intensity. Lava continues to flow out of the lava lake in the crater. The lava field continues to grow to the south. Yesterday a helicopter from the Icelandic Cost Guard used to examine conditions by the southern edge of the lava field, were lave is flowing on a 3-5 km wide area.
• Seismic activity in Bardarbunga continues to be strong. The biggest earthquake that was detected over the last two days was on Monday, 10. November at 22:39 of magnitude M5,2. In total 15 earthquakes between M4,0 and M5,0 were detected over the period. From noon on Monday the total number of earthquakes was around 130.
• Very few smaller earthquakes were detected in the dyke and at the eruption site in Holuhraun.
• An earthquake swarm was detected in Tungnafellsjokll glacier yesterday. The biggest earthquake was at 10:07 of magnitude M2,8.
• The subsidence of the Bardarbunga caldera continues with similar rate as last few weeks. Yesterday the GPS station was lifted out of the snow, which is now falling on the glacier. The sharp rise seen on the graph on the Icelandic Met Office web page, is the result of this operation.

twitter:

uni_iceland twitterde op woensdag 12-11-2014 om 13:52:59 The cause of yesterdays bump in #Bardarbnga subsidence graph. The GPS monitor was moved because of heavy snow http://t.co/xIX2qLiJYv reageer retweet

twitter:

Bardarbunga twitterde op donderdag 13-11-2014 om 10:29:41 Damn you #Holuhraun for stealing my mojo and fame. Just showing off with your long lasting eruption. #Bardarbunga reageer retweet

quote:

• The volcanic eruption in Holuhraun continues with similar intensity as it has for the last two weeks. Lavacontinues to flow out of the lava lake in the crater to east southeast. Convection of sulphuric dioxide from the crater appears to be constant.
• Seismic activity in Bardarbunga continues to be strong but number of earthquakes stronger then M5,0 seem to be decreasing. The biggest earthquakes that were detected over the last two days were yesterday, 13. November at 20:46 of magnitude M4,9 and at 23:08 of magnitude M4,8. In total 17 earthquakes bigger then M4,0 were detected over the period but no earthquake stronger then M5,0 has been detected for four days. From noon on Wednesday the total number of earthquakes in Bardarbunga was around 140.
• About 25 smaller earthquakes were detected in the dyke and at the eruption site in Holuhraun. All of them under magnitude M1,5.
• The subsidence of the Bardarbunga caldera continues with similar rate as last few weeks although the rate of the depression appears to be slower.
• GPS measurements outside of Bardarbunga show that the displacement is slowing down.