Jökull - 01.01.2011, Side 78
S. Magnúsdóttir and B. Brandsdóttir
eldgossins við Mánáreyjabreka um sömu áramót.
Þessi umbrotahrina hélt áfram með frekari jarð-
skjálftum til vesturs eftir Húsavíkur-Flateyjarkerfinu
í apríl 1872, skjálftum við Húsavík og sennilega á
Reykjaheiði í nóvember 1884 og henni lauk senni-
lega með Víkingavatnsskjálftanum í janúar 1885.
REFERENCES
Austri 1884. December 17., 27, p. 318.
Austri 1885. April 18., 4, p. 15.
Björnsson, A., K. Saemundsson, P. Einarsson, E.
Tryggvason and K. Grönvold 1977. Current rifting
episode in north Iceland. Nature 266, 318–323.
Björnsson, A. 1985. Dynamics of crustal rifting in
NE Iceland. J. Geophys. Res. 90, 6607–6622, doi:-
10.1029/JB090iB12p10151.
Björnsson, A., K. Sæmundsson, F. Sigmundsson, P. Hall-
dórsson, R. Sigbjörnsson and J. Þ. Snæbjörnsson
2007. Geothermal projects in NE Iceland at Krafla,
Bjarnarflag, Gjástykki and Þeistareykir. Assessment
of geo-hazards affecting energy. Report for Þeista-
reykir ehf., and Landsvirkjun, LV-2007/075 157 pp.
Brandsdóttir, B. 1992. Historical accounts of earth-
quakes associated with eruptive activity in the Askja
volcanic system. Jökull 42, 1–12.
Brandsdóttir, B., R. Detrick, G. Helgadóttir, E. Kjart-
ansson, B. Richter, K. Gunnarsson, S. Þ. Guðlaugs-
son, N. Driscoll and G. Kent 2002. A new perspec-
tive of the tectonics of the Tjörnes Fracture Zone,
offshore Northern Iceland, from EM300 Multibeam
Bathymetry, High Resolution MCS and CHIRP
Sonar Profiles. Eos Trans. AGU 83, F731.
Brandsdóttir, B., B. Richter, E. Kjartansson, C. Riedel,
T. Dahm, G. Helgadóttir, R. Detrick, Á. Magnús-
son, Á. Ásgrímsson, B. H. Pálsson, J. A. Karson, K.
Sæmundsson, L. Mayer, B. Calder and N. Driscoll
2004. Tectonic details of the Tjörnes Fracture Zone,
an onshore-offshore ridge-transform in N-Iceland.
Eos Trans. AGU 85 (47), F1071.
Brandsdóttir, B., S. Magnúsdóttir and I. Jónsdóttir 2010.
Jarðhnik á Tjörnesi. (Tectonics of the Tjörnes penin-
sula, in Icelandic.) Report to the National Power
Company, RH-04-2010, 31 pp.
Brandsdóttir, B., R. Detrick, G. Helgadóttir, E. Kjartans-
son, B. Richter, C. Riedel and L. Mayer, in prep.
Ridge-transform interactions between the Southern
Kolbeinsey Ridge and Tjörnes Fracture Zone, N-
Iceland: Results of multibeam bathymetric surveys
2002–2005.
Buck, W. R., P. Einarsson and B. Brandsdóttir 2006.
Tectonic stress and magma chamber size as controls
on dike propagation: Constraints from the 1975–
1984 Krafla rifting episode. J. Geophys. Res. 111,
B12404, doi:10.1029/2005JB003879.
Camps, P., B. S. Singer, C. Carvallo, A. Goguitchai-
chvili, G. Ganjat and B. Allen 2011. The Kamikat-
sura event and the Matuyama-Brunhes reversal
recorded in lavas from Tjörnes Peninsula, northern
Iceland. Earth Planet. Sci. Lett. 310, 33–44.
Dagur 1976. January 14, 59, p. 2.
Decriem, J., T. Árnadóttir, A. Hooper, H. Geirsson,
F. Sigmundsson, M. Keiding, B. G. Ófeigsson, S.
Hreinsdóttir, P. Einarsson, P. LaFemina and R. A.
Bennett 2010. The 2008 May 29 earthquake dou-
blet in SW Iceland. Geophys. J. Int. 181, 1128–1146,
doi:10.1111/j.1365-246X.2010.04565.x
DeMets, C., R. G. Gordon, D. F. Argus and S. Stein
1994. Effect of recent revisions to the geomagnetic
reversal time scale on estimates of current plate mo-
tions. Geophys. Res. Lett. 21, 2191–2194.
Einarsson, P. 1976. Relative location of earthquakes
in the Tjörnes fracture zone. Soc. Sci. Islandica,
Greinar V, 45–60.
Einarsson, P. and S. Björnsson 1979. Earthquakes in Ice-
land. Jökull 29, 37–43.
Einarsson P. and B. Brandsdóttir 1980. Seismological ev-
idence for lateral magma intrusion during the July
1978 deflation of the Krafla volcano in NE-Iceland.
J. Geophys. 47, 160–165.
Einarsson, P. and K. Saemundsson 1987. Earthquake epi-
centers 1982–1985 and volcanic systems in Iceland
(map). In: Sigfússon, Th. (ed.), Í hlutarins eðli: Fest-
schrift for Thorbjorn Sigurgeirsson. Menningarsjóð-
ur, Reykjavík.
Einarsson, P. 1991. Earthquakes and present-day tecton-
ism in Iceland. Tectonophysics 189, 261–279.
Einarsson, P. 2008. Plate boundaries, rifts and transforms
in Iceland. Jökull 58, 35–58.
Elíasson, S. 1976a. Fór jörðin að hreyfast... (Then
the Earth moved... In Icelandic.) Morgunblaðið 31.
February 8., 14–15.
Elíasson, S. 1976b. Landskjálftar í Öxarfirði fyrr á
tímum. (Past earthquakes in Öxarfjörður. In Ice-
landic.) Týli 6, 31–34.
Fjallkonan 1884. November 28, 1:22, p. 88.
Gíslason, G., G. V. Johnsen, H. Ármannsson, H. Torfa-
son and K. Árnason 1984. Þeistareykir –Yfirborðs-
rannsóknir á háhitasvæðinu. (Þeistareykir – surface
78 JÖKULL No. 61, 2011