been manually revised so far are shown as red dots. The M5.5 mainshock is located on a north-south striking left lateral strike-slip fault, see black lines in the map. The M4.7 event around 9 am was located on a normal fault to the north-west.
This cluster at about 7.5 km distance to the main cluster was most likely activated due to static stress changes induced by the M5.5 earthquake
/about-imo/news/nr/2681
parts of the Grímsey fault system.
The events of 2nd April were reported earlier. Later that evening new activity started 15-20 km southeast of the main cluster, and around 23:00 two earthquakes M4.7 and 4.6 were measured in that area and felt widely in North Iceland. Both were on a left lateral strike-slip faulting.
The map above shows the activity from 31st March to the late afternoon of 4th
/about-imo/news/nr/2685
approximately 140 earthquakes between 30 January and 22 April that year. The
reason probably being the depth of the seismic cluster, which was near the base of the
crust.
The purpose of this research is to analyze the seismic activity within Eyjafjallajökull
recorded by the SIL network during the period 1991–2006, in order to study the processes
that caused the heightened seismicity and uplift
/media/vedurstofan/utgafa/skyrslur/2009/VI_2009_013.pdf
were M 3.6 at 03:42 and M 3.2 at 07:47. Since the afternoon of 23 October, a new cluster of earthquakes has occurred about 5 km north-northwest of Gjögurtá on the intersection of the eastern end of Eyjafjarðaráll and the Húsavík-Flatey Fault (HFF). The largest events in this region were M 3.1 at 23:38 on 23 October and 3.2 at 22:20 on 24 October (see the map).
Movements on the fault of the M
/about-imo/news/nr/2561
structure, analysis or interpretation of their study). Small clusters of 3 or 4 related dissertation projects will be discussed and reviewed with the aid of experts in parallel sessions. Following acceptance and registration for the Workshop, every PhD student will be allocated a mentor from the pool of experts. Each cluster will receive several assignments for group work. The Workshop will also include 2
/nonam/adaption/phd-workshop-2012/
earthquake locations
significantly.
Our first step is to test the algorithm on a small subset of 215 earthquakes in year 2001, as reported in
the SIL catalog, the earthquakes being located in and around the Geysir region in Southern Iceland.
Three small areas were active during the year of 2001, although only one of them was recorded to be
active as an earthquake sequence (western cluster; main
/media/norsem/norsem_begga.pdf
reactivation type (reverse, normal or strike slip) based solely on their
azimuth. The earthquakes in the seismically most active area, close to Skellefteå, Sweden along the
western coast of the Gulf of Bothnia and its north-easterly continuation, appear to cluster around the
shoreline and along post-glacial faults, which are mostly oriented optimally for reverse or strike slip
faulting
/media/norsem/norsem_korja.pdf
0 0 0
M>5.0 74 0 74 0 0 0 0 0
HB / HBT Herðubreið and Herðubreiðartögl
TFJ Tungnafellsjökull
Kverkfj. Kverkfjöll
Kistufell cluster north of Bárðarbunga that was active during the first days
GPS measurements
Great crustal movement was detected while the intrusive dike was being formed. The GPS measurements
showed the advance of the intrusion and, simultaneously, subsidence towards
/media/jar/bb100days_ens.pdf
6University of Washington,
Seattle, WA 98195, USA. 7NOAA Geophysical Fluid
Dynamics Laboratory, Princeton, NJ 08540, USA.
*Author for correspondence. E-mail: cmilly@usgs.gov.
An uncertain future challenges water planners.
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on July 12, 201
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