.............................................................................................. 27
REFERENCES ..................................................................................................................... 28
Figures
Figure 1. Volcanic zones of Iceland, shown in yellow (Einarsson & Sæmundsson, 1987). .... 8
Figure 2. Mean annual number of days per year with snow covered ground
/media/ces/2010_017.pdf
then increased around
00:30UTC and it is still very active with 1-10 earthquakes per minute. Later in
the night the activity shifted closer to the volcano in Geldingardalir. This
activity can be explained as magma intruding in the crust. There are currently no
indication of volcanic tremor in the area. Up to this point this
seismic swarm counted around1.400 automatically detected earthquakes and 90
/about-imo/news/update-on-the-eruption-in-geldingadalir
then increased around
00:30UTC and it is still very active with 1-10 earthquakes per minute. Later in
the night the activity shifted closer to the volcano in Geldingardalir. This
activity can be explained as magma intruding in the crust. There are currently no
indication of volcanic tremor in the area. Up to this point this
seismic swarm counted around1.400 automatically detected earthquakes and 90
/about-imo/news/update-on-the-eruption-in-geldingadalir/
0) and today, 16 December (week 18). The cumulative moment and numbers of events are calculated for each week; i.e. for each week the earthquakes of certain magnitude ranges were counted and the moment of all earthquakes was simply summed up.
Both upper panels show the activity in the dyke, where left panel shows the cumulative moment release per week and the right panel the weekly number
/earthquakes-and-volcanism/articles/nr/3039
(6 106 m3) per
month for the lake below the western cauldron and 9 Gl per month for the eastern caul-
dron. Data on water accumulation and lake water composition in the western cauldron
were used to estimate the power of the underlying geothermal area as 550 MW.
For a jökulhlaup from the Western Skaftá cauldron in September 2006, the low-
ering of the ice cover overlying the subglacial lake
/media/vedurstofan/utgafa/skyrslur/2009/VI_2009_006_tt.pdf
to diminish. No earthquake over M3 has occurred since 21 February and none over M5 since 8 January.
GPS measurements near Vatnajökull ice cap show continuing slow deflation towards Bárðarbunga, still indicating a flow of magma from under the volcano. The subsidence of the caldera was 5 cm per day last week, correcting for the ice which slowly flows into the caldera.
An automatic gas detector
/earthquakes-and-volcanism/articles/nr/3087
to diminish. No earthquake over M3 has occurred since 21 February and none over M5 since 8 January.
GPS measurements near Vatnajökull ice cap show continuing slow deflation towards Bárðarbunga, still indicating a flow of magma from under the volcano. The subsidence of the caldera was 5 cm per day last week, correcting for the ice which slowly flows into the caldera.
An automatic gas detector
/earthquakes-and-volcanism/articles/nr/3087/
of the Scientific Advisory Board (pdf 0.4 Mb).
Seismic activity in Bárðarbunga continues to diminish. No earthquake over M3 has occurred
since 21 February and none over M5 since 8 January.
GPS measurements near Vatnajökull ice cap show continuing slow deflation towards
Bárðarbunga, still indicating a flow of magma from under the volcano. The subsidence of the
caldera was 5 cm per day last week
/media/jar/Bardarbunga-2015_February_events.pdf
:55 (24 Dec.) and at 11:02 this morning (25 Dec.). Four more were over 4 in magnitude. In total, around 50 earthquakes were detected in Bárðarbunga. In the dyke intrusion 9 quakes were detected, all under M2.
Now 81 km²
An overview map from Christmas Eve. The new lava is now 81 km² (80,6 km² + 0,4 km²) in size. Enlarge. Institute of Earth Sciences.
24 December 2014 12:00 - from
/earthquakes-and-volcanism/articles/nr/3055
:55 (24 Dec.) and at 11:02 this morning (25 Dec.). Four more were over 4 in magnitude. In total, around 50 earthquakes were detected in Bárðarbunga. In the dyke intrusion 9 quakes were detected, all under M2.
Now 81 km²
An overview map from Christmas Eve. The new lava is now 81 km² (80,6 km² + 0,4 km²) in size. Enlarge. Institute of Earth Sciences.
24 December 2014 12:00 - from
/earthquakes-and-volcanism/articles/nr/3055/