[BREAKING] Vulkanen IJsland #21: Eruptie op komst bij Reykjanes?

quote:

Op dinsdag 6 januari 2015 21:15 schreef aloa het volgende:
Vanavond in nieuws uur http://nieuwsuur.nl/live/
Morgen ook op de kennis van nu: http://www.npowetenschap.(...)januari-ijsland.html

twitter:

janinekrippner twitterde op donderdag 08-01-2015 om 17:45:03 Great image comparison of the Holuhraun lava field! Images from Jan 3 2015 and Sept 6 2014 http://t.co/lzr6lkFNMq http://t.co/7HKzE727Pc reageer retweet

twitter:

AlisonGraetting twitterde op donderdag 08-01-2015 om 16:53:15 Beautiful labled features of #Nornahraun Lava Field Iceland from @NASA_EO from Jan 3 http://t.co/1HUYGcKoM4 http://t.co/4678Fywx2C reageer retweet

quote:

There are changes taking place in harmonic tremor on the SIL stations closest to the eruption in Holuhraun. I don’t know what this means exactly, the best idea at the moment is that the eruption is either ending or getting less in power. It is hard to know for sure at this moment due to the bad weather in Iceland. This might also just be part of normal fluctuation of the eruption.

quote:

• Insubstantial changes have been in the volcanic eruption in Holuhraun over the last few weeks. The eruption is now well visible on web cameras and the activity appears to be similar to preceding weeks.
• Seismic activity in Bardarbunga continues to be strong, but it has though somewhat decreased. Total number of earthquakes in Bardarbunga from the last meeting of the board, on the 6 of January, is just over 100. Just over 10 earthquakes were between M4,0-5,0. The strongest one was M5,1 yesterday, 8. December, at 18:47. Few earthquakes were detected in the dyke of the same period, all of them smaller then M2,0.
• GPS measurements near northern Vatnajokull glacier show continuing slow deflation towards Bardarbunga. The rate of the deflation continues to slow down.
• The GPS station in Bardarbunga caldera show that the caldera continues to subside. The rate of the subsidence continues to slow down and is now between 10-15 cm per day.

twitter:

janinekrippner twitterde op vrijdag 09-01-2015 om 11:55:36 Holuhraun lava field now 83.8 km². Thermal and radar images show current active areas http://t.co/M7lLGw3s6X #volcano http://t.co/NYe8Fmo5pc reageer retweet

twitter:

janinekrippner twitterde op maandag 12-01-2015 om 16:38:11 More incredible images of Holuhraun from http://t.co/e3YHhIOEtI #volcano http://t.co/lg51ep0PIJ http://t.co/BM4cnWgVDl reageer retweet

quote:

• Insubstantial changes have been in the volcanic eruption in Holuhraun over the last few weeks. Although the power of the eruption has diminished, it is still quite forceful. The flow of lava is now largely under the surface of solidified lava.
• Seismic activity in Bardarbunga continues to be strong, but it has though somewhat decreased. The largest earthquake since the last meeting of the Advisory Board was of magnitude M4,7 on Saturday, 10 of January at 18:23. In total 16 earthquakes were recorded of the period between magnitude M4,0-5,0 and 13 between M3,0- 4,0. Over 20 earthquakes were detected in the dyke of the same period, all of them smaller then M2,0.
• Six earthquakes were detected in Tungnafellsjokull glacier since Friday. The biggest was M2,1 tonight, January 13 at 04:21. Around 20 earthquakes were detected around Herdubreid, all smaller then M2,0.
• GPS measurements near northern Vatnajokull glacier show continuing slow deflation towards Bardarbunga.
• The GPS station in Bardarbunga caldera show that the caldera continues to subside.
• Indications are of increased respiratory symptoms in Iceland over the period of the volcanic eruption. No serious cases have though been reported.
• High values of sulphuric dioxide are still being recorded. Over the weekend high values were recorded in Hofn (3400 µ/m³) in Reydarfjordur (1000 µ/m³) and in Jokuldal (7800 µ/m³).

twitter:

janinekrippner twitterde op dinsdag 13-01-2015 om 16:34:00 Awesome video taken over Holuhraun this past weekend! #volcano http://t.co/ZHQ1cRdOta http://t.co/NWhCId9a34 reageer retweet

twitter:

janinekrippner twitterde op dinsdag 13-01-2015 om 16:22:17 Iceland's Holuhraun crater now ~100x400 m & 100 m high - can hold 4 football pitches! #volcano http://t.co/SNxrfOiEUo http://t.co/oSdU4PYzn2 reageer retweet

twitter:

LGawenda twitterde op dinsdag 13-01-2015 om 17:22:57 Currently 84 km² #lava field #Holuhraun #Bardarbunga #volcano #eruption #Iceland #ashtag - http://t.co/uDoTkaRDLQ http://t.co/D4Bd7URnB6 reageer retweet

twitter:

janinekrippner twitterde op woensdag 14-01-2015 om 15:29:46 Stunning photos of the Holuhraun eruption in Iceland http://t.co/TR5Srk0nyj #volcano http://t.co/TTvpOcoRwW reageer retweet

quote:

• Insubstantial changes have been in the volcanic eruption in Holuhraun over the last few weeks. Volume of the lava flow, over the last few weeks, is estimated 50-70 cubic meters per second.
• Seismic activity in Bardarbunga continues to be strong. Over the last few weeks it has though been quite weaker than in the first months of the event. Three earthquakes of magnitude M4,6 were detected since the last meeting of the Advisory Board on Tuesday, 13. January. Sixteen earthquakes were detected between magnitude M4,0-5,0 during that period and in total around 150 earthquakes were detected.
• Around 40 earthquakes were detected in the dyke during the same period, all of them smaller then M2,0.
• Around 20 earthquakes were detected in Tungnafellsjokull glacier since last Tuesday. The strongest one was M3,1 on January 13 at 13:17. Friday. Around 20 earthquakes were detected around Herdubreid, the strongest one was M2,3.
• GPS measurements near northern Vatnajokull glacier show continuing slow deflation towards Bardarbunga.
• The GPS station in Bardarbunga caldera is not transmitting any data at the moment. A repair mission is being organised to get the station back on-line.
• High values of sulphuric dioxide are still being recorded.

twitter:

janinekrippner twitterde op zondag 18-01-2015 om 16:03:32 The Holuhraun lava field is the size of Manhattan, and is going to get a new name http://t.co/ReiBvIbUMQ #volcano http://t.co/UPBzeqn25W reageer retweet

twitter:

janinekrippner twitterde op maandag 19-01-2015 om 11:47:26 Wow that thing is huge! Holuhraun lava field in Iceland via. @uni_iceland: (via IMO) http://t.co/oJSI48b7mZ #volcano reageer retweet

twitter:

uni_iceland twitterde op maandag 19-01-2015 om 11:12:17 This pic was taken Jan. 17 by police officers in #Holuhraun On Jan. 18, the sign was buried by the lava #verycool http://t.co/14CcAHifXN reageer retweet

twitter:

subglacial twitterde op maandag 19-01-2015 om 13:12:08 #Iceland's rapidly changing enviroenment. My July 2012 gravity station was buried by #Holuhraun lava on 18 Jan 2015. http://t.co/NpGDjkTVK3 reageer retweet

quote:

Op woensdag 21 januari 2015 16:09 schreef Leipo666 het volgende:
TVP, misschien zien we nog wat moois als we hier dit jaar naartoe op vakantie gaan

twitter:

volcan01010 twitterde op woensdag 21-01-2015 om 17:39:23 Haraldur Siguršsson extrapolates #Bardarbunga caldera subsidence data + predicts #Holuhraun eruption end March 2015 http://t.co/87a6Pvkk5a reageer retweet

twitter:

almannavarnir twitterde op vrijdag 23-01-2015 om 14:01:45 Notes from the Scientific Advisory Board http://t.co/79j3EC12g2 og į Ķsl http://t.co/2RxK5pJNuH #Bardarbunga #Holuhraun reageer retweet

quote:

• Insubstantial changes have been in the volcanic eruption in Holuhraun over the last few weeks. The lava field has thickened substantially but activity on the surface has decreased.
• The subsidence in Bardarbunga caldera was measured from air on Wednesday. The volume of the subsidence is now 1.7-1.8 km3. The change in volume from the last measurement corresponds to a flow of magma from underneath Bardarbunga of about 60 m3 per second. The greatest subsidence is now about 61 meters. Over the last few weeks the geothermal cauldrons in Bardarbunga have enlarged.
• Seismic activity in Bardarbunga continues to be strong. Over the last few weeks it has though been quite weaker than in the first months of the event. No earthquake over M5,0 has been detected in Bardarbunga for 15 days, which is the longest period between M5,0 earthquakes since the seismic activity started in August. The strongest earthquake since the last meeting of the Advisory Board on Tuesday was measured M4,7 yesterday at 03:07. Eight other earthquakes between magnitude M4,0-4,7 were detected over the period and about 37 earthquakes between M3,0-4,0. In total around 150 earthquakes have been detected around the caldera since last Tuesday.
• Around 65 earthquakes were detected in the dyke during the same period, the strongest one was measured M1,5.
• Insubstantial earthquake activity was detected in Tungnafellsjokull, Askja and Herdubreid.
• GPS measurements near northern Vatnajokull glacier show continuing slow deflation towards Bardarbunga.
• Around 2200 µg/m3 SO2 were recorded on Thursday in Reykjahlid and at lake Myvatn. Very high values of SO2, about 84000 µg/m3, were recorded at the eruption site in Holuhraun on Wednesday, being the highest values recorded at ground level since the eruption started.

quote:

• The volcanic eruption in Holuhraun continues. Visible intensity of the eruption was low on last Wednesday while various observations were done at the eruption site. Comprehensive cross-section measurements from air (on 30. December and 21. January) show however that the lava field has thickened substantially during these three weeks and that the volume of the lava field is now little less than 1.4 km3. The flow of magma, during this period, was just under 100 m3 per second. The intensity of the eruption is there for slowly decreasing but hopefully it will be possible to measure the volume of the lava field again later this week, which will give new numbers on the flow of magma.
• Seismic activity in Bardarbunga continues to be strong. Eight earthquakes between M4.0-4.9 have been detected since the last meeting of the Advisory Board on Friday. The strongest one was measured M4.9 on Saturday, 24. January at 07:25. About 40 earthquakes between magnitudes M3.0-3.9 were detected over the period. In total around 150 earthquakes have been detected around the caldera since last Friday. No earthquake over M5,0 has been detected in Bardarbunga since 8. January.
• Around 50 earthquakes were detected in the dyke during the same period. Most of them were under M1.0 but the strongest one was M1.6 on 24. January.
• GPS measurements near northern Vatnajokull glacier show continuing slow deflation towards Bardarbunga.

twitter:

volcanofile twitterde op maandag 26-01-2015 om 22:44:16 Marked further decline of activity at #Nornahraun. Report compiled by @uni_iceland volcanologists: http://t.co/UFoYrOwUHL MT @alexwitze reageer retweet

twitter:

jonfr500 twitterde op vrijdag 30-01-2015 om 01:26:06 Possible minor eruption in Bįršarbunga volcano caldera, under the glacier. http://t.co/GprS5q5u59 reageer retweet

twitter:

uni_iceland twitterde op zondag 01-02-2015 om 15:31:21 #Bardarbunga 2014- = 1.3 km3 #Grķmsvötn 2011 = 0.25 km3 #Eyjafjallajökull 2010 = 0.16 km3 Thankfully the ongoing eruption isn't subglacial reageer retweet

quote:

Op dinsdag 3 februari 2015 09:35 schreef Frutsel het volgende:
'Game of Drones'.... by Ginger Zee

http://icelandreview.com/(...)live-holuhraun-today

quote:

• The volcanic eruption in Holuhraun continues. A visible reduction has been on the eruption in the last two weeks.
• Seismic activity in Bardarbunga continues to be strong. The strongest earthquake since the last meeting of the Advisory Board on Tuesday was measured M4.9 tonight at 03:48. Two other earthquakes stronger than M4,0 were detected since Tuesday, one was M4,5 and the other M4,0. About 10 earthquakes between magnitudes M3.0-3.9 were detected over the period. In total around 110 earthquakes were detected around the caldera since last Tuesday. No earthquake over M5,0 has been detected in Bardarbunga since 8. January.
• Around 20 earthquakes were detected in the dyke during the same period. The strongest one was M1.8.
• GPS measurements near northern Vatnajokull glacier show continuing slow deflation towards Bardarbunga.
• The highest levels of sulphuric dioxide since Tuesday, 3rd of February, 800 µg/m³ SO2 was measured in Vopnafjordur on Tuesday.
• A new risk analysis for the area around the eruption site is being conducted. The new risk map for the area will be issued next week.
• A team of technicians from The Icelandic Met Office, Institute of Earth Sciences UI, and The Department of Civil Protection have been working on maintenance on measuring equipment’s on Vatnajokull glacier and in the surrounding area. The GPS station in the Bardarbunga caldera is back on-line and will be visible on the IMO web site as before.

quote:

Notes
• The volcanic eruption in Holuhraun continues. No scientists are in the area because of bad weather.
• Seismic activity in Bardarbunga continues to be strong. The strongest earthquake since the last meeting of the Advisory Board on Tuesday was measured M4.7 tonight at 03:18. Two other earthquakes stronger than M4.0 were detected since Friday, one was M4.1 on Saturday at 07:05, and the other M4.0, also on Saturday but at 04:00. About 10 earthquakes between magnitudes M3.0-3.9 were detected over the period. In total around 60 earthquakes were detected around the caldera since last Friday. No earthquake over M5.0 has been detected in Bardarbunga since 8. January.
• Around 30 earthquakes were detected in the dyke during the same period. The strongest one was M2.0 on Saturday at 20:35.
• The GPS station in the Bardarbunga caldera is back on-line and is visible on the IMO web site.
• GPS measurements near northern Vatnajokull glacier show continuing slow deflation towards Bardarbunga. A detectable errors are in the GPS measurements due to bad weather conditions over the last few days.
• A new risk analysis for the area around the eruption site is being conducted. The new risk map for the area will be issued this week.
• A team of scientists has been monitoring pollution in rainwater, snow and melt water since the eruption started. The team is planning to collect samples on Vatnajokull glacier and on mountain tops in Eastern Iceland. Chemical composition of rainwater around Iceland is also being monitored.

quote:

Notes
• The volcanic eruption in Holuhraun continues. The eruption is still strong although it continues to diminish.
• Seismic activity in Bįršarbunga continues to be strong. The strongest earthquake since the last meeting of the Advisory Board on Friday was measured M4.5 on Friday, 13th of February, at 21:22. Two other earthquakes stronger then magnitudes M4.0 were detected over the period and three between M3.0-3.9. In total around 70 earthquakes were detected around the caldera since last Friday. No earthquake over M5.0 has been detected in Bįršarbunga since 8. January.
• Around 60 earthquakes were detected in the dyke during the same period. All smaller than M2.0.
• GPS measurements near northern Vatnajökull glacier show continuing slow deflation towards Bįršarbunga.
• About 40 earthquakes were detected around Heršubreiš and Heršubreišartögl since Friday. The strongest was M2.0 yesterday at 03:39. About 10 earthquakes were detected around Askja and three in Tungnafellsjökull.

twitter:

Bardarbunga twitterde op woensdag 18-02-2015 om 09:35:23 http://t.co/ahja1Jhvfp reageer retweet

twitter:

jonfr500 twitterde op donderdag 19-02-2015 om 02:35:56 There is a bad signal on SIL stations around Vatnajökull. I am monitoring it. reageer retweet

quote:

Notes
• The volcanic eruption in Holuhraun continues, but it has diminished substantially over the last few weeks. Visual activity in the crater has decreased and the lava field is hardly increasing in size.
• Seismic activity in Bįršarbunga continues to diminish although it can still be considered strong. The strongest earthquake since Tuesday was measured M4.3 at 01:26 yesterday. Two other earthquakes stronger then magnitudes M3.0 were detected over the period. In total around 70 earthquakes were detected around the caldera since last Tuesday. No earthquake over M5.0 has been detected in Bįršarbunga since 8. January. A distinct pulse of earthquakes occurred yesterday between 01:25 and 02:10. Time intervals between such pulses have significantly increased from 2-4 hours in the beginning to 12-24 hours or more at the moment.
• Around 65 earthquakes were detected in the dyke during the same period. The strongest one was measured M1.6 today at 08:24 in Dyngjujökull glacier.
• The rate of the subsidence in Bįršarbunga caldera had decreased substantially. But that is not the whole story. Ice is subsiding into the caldera with the effect that the GPS station does not show any changes. The estimated depression of the rock foundation of the caldera, in the light of the ice subsidence, is about 5 cm per day. The flow of magma from under Bįršarbunga is believed to be 25-30 m3 per second, which is about one tenth of the flow in September last year.
• GPS measurements near Vatnajökull glacier show continuing slow deflation towards Bįršarbunga, indicating a flow of magma from under the volcano.
• About 7 earthquakes were detected around Askja and 15 around Heršubreiš since last Tuesday. All of them smaller than M1.5.

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

twitter:

HTuffen twitterde op woensdag 25-02-2015 om 16:47:07 Dwindling seismic activity at #Bįrdarbunga reaches a new low: now no M>2 events in last 48 hours http://t.co/cU3nTAZky8 reageer retweet

twitter:

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 į Ķsl 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

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