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
under magnitude 2.
Earthquakes continue in the area about 10 km north of Geysir. Almost 30 quakes were observed there during the past 24 hours, there of about 10 since midnight. The largest was of magnitude 2.5 at 12:45 yesterday.
25 December 2014 12:00 - from geoscientist on duty
The new earthquake sequence, located about 10 km north of Geysir geothermal field (south of Langjökull), continues
/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
tremor has been similar for the past 3 days. A sequence of earthquakes started around 11:00 this morning at depths of 18 - 20 km and magnitude range 1 - 2. The earthquake sequence this morning indicates that magma is still flowing in from the mantle. Presently there are no indications that the eruption is about to end.
The above is based on a status report issued collectively by the Icelandic
/earthquakes-and-volcanism/articles/nr/1884
) is considered as a sequence of steps
corresponding to n individual glaciers of different sizes (with volumes vi and areas si for i = 1
to n), or using
V (v) =
Z v
0
1
g
dS
ds
dx ; (7)
where the slope of the area distribution function, dS=ds, is considered as a function of ice vol-
TóJ 5 5.12.2009
Memo
0 50 100 150 200
0
5
10
15
20
25
Cumulative area (km2)
Area
(km
2 )
0 5 10 15
0.
0
0.
5
1.
0
1.
5
2.
0
2.
5
/media/ces/ces-glacier-scaling-memo2009-01.pdf
morning, around 2.600 earthquakes have been detected with the earthquake monitoring network of the Icelandic Meteorological Office (IMO). Throughout the whole sequence the majority of events has been at 5-10km depth. No signs of migration towards the surface or any other signs of imminent or ongoing volcanic activity have been detected. IMO is monitoring the area closely and will update in case
/earthquakes-and-volcanism/articles/nr/3000
at Bárðarbunga on Saturday morning, around 2.600
earthquakes have been detected with the earthquake monitoring network of the Icelandic
Meteorological Office (IMO). Throughout the whole sequence the majority of events has been
at 5-10km depth. No signs of migration towards the surface or any other signs of imminent or
ongoing volcanic activity have been detected. IMO is monitoring the area closely
/media/jar/Bardarbunga-2014_August-events.pdf
/s.
13
Figure 7. Example of long-term eruption tremor data from a station (sgi) 4 km SW of the
Fagradalsfjall eruption site. The periods of high amplitude represent the eruptive sequence
during which lava is visible in the crater, followed by low amplitude quiet periods with little
to no active lava fountaining.
The number of stations that should be required to vote before a tremor
/media/vedurstofan-utgafa-2021/VI_2021_008.pdf