and about 10 around Herðubreið.
19 February 2015 - on pulses and the time lapse between them
Earthquake pulses on the caldera rim of 30-90 minutes duration, like the one observed last night, have been characteristic for the seismic activity linked to the caldera subsidence since the beginning of the sequence last summer.
Such pulses were observed several times per day during the first months
/earthquakes-and-volcanism/articles/nr/3087
This morning at 05:58 an earthquake 3.2 in magnitude occurred. It was felt at Geysir in Haukadalur, in Miðdalur east of Laugarvatn, and at Syðri-Reykir in Biskupstungur. Since noon yesterday, over 80 earthquakes have been detected in the area. Their origin is at 2 - 3 km depth.
The two largest earthquakes in Bárðarbunga (northwestern Vatnajökull) since noon yesterday were 4.5 in magnitude at 18
/earthquakes-and-volcanism/articles/nr/3055/
and about 10 around Herðubreið.
19 February 2015 - on pulses and the time lapse between them
Earthquake pulses on the caldera rim of 30-90 minutes duration, like the one observed last night, have been characteristic for the seismic activity linked to the caldera subsidence since the beginning of the sequence last summer.
Such pulses were observed several times per day during the first months
/earthquakes-and-volcanism/articles/nr/3087/
earthquake sequence, located about 10 km north of Geysir geothermal field (south of
Langjökull), continues. This morning at 05:58 an earthquake 3.2 in magnitude occurred. It
was felt at Geysir in Haukadalur, in Miðdalur east of Laugarvatn, and at Syðri-Reykir in
Biskupstungur. Since noon yesterday, over 80 earthquakes have been detected in the area.
Their origin is at 2 - 3 km depth.
The two largest
/media/jar/Bardarbunga-2014_December-events.pdf
was M1.6 today at 08:24. Additionally, five
earthquakes were measured around Askja and about 10 around Herðubreið.
19 February 2015 - on pulses and the time lapse between them
Earthquake pulses on the caldera rim of 30-90 minutes duration, like the one observed last
night, have been characteristic for the seismic activity linked to the caldera subsidence since
the beginning of the sequence
/media/jar/Bardarbunga-2015_February_events.pdf
in
Norway was provided by the Norwegian Water Resources and Energy Directorate (NVE).
TóJ 12 5.12.2009
Memo
References
Bahr, D. B., M. F. Meier and S. D. Peckham. 1997. The physical basis of glacier volume–area
scaling. J. Geophys. Res., 102(B9), 20,355–20,362.
Björnsson, H., and F. Pálsson. 2008. Icelandic glaciers. Jökull, 58, 365–386.
Fenger, J. (Ed.). 2007. Impacts of Climate Change on Renewable
/media/ces/ces-glacier-scaling-memo2009-01.pdf
providing 11 minutes of warning time before the eruption.
The tremor signal emanating from Hekla travels outwards in a radial pattern, starting at stations
closest to Hekla and then traveling outwards towards the borders of Iceland. Figure 8 shows the
tremor amplitude plots for stations with a NE bearing from Hekla (Figure 8a) and a WSW
bearing from Hekla (Figure 8b). Figure 9 shows
/media/vedurstofan-utgafa-2021/VI_2021_008.pdf