Jökull


Jökull - 01.01.2019, Side 52

Jökull - 01.01.2019, Side 52
Historical accounts of pre-eruption seismicity in Iceland lega forboða, nægilega greinilega til að vara fólk við. Fornleifauppgröftur í Öræfum gefur vísbendingar um að fólk hafi verið flutt að heiman áður en gosið 1362 náði hámarki og eyddi byggðinni. REFERENCES Bárðarson, G. 1930. Vulkan-ausbrüche in Island. I. Vulkan- ausbrüche in der Gegend der Hekla im Jahre 1913 (in Ger- man). Societas Scientiarum Islandica, Gutenberg, Reykjavík, 1–31. Bjarnason, I.Th. 2008. An Iceland hotspot saga. Jökull 58, 3–16. Björnsson, A., K. Sæmundsson, P. Einarsson, E. Tryggvason and K. Grönvold 1977. Current rifting episode in north Iceland. Nature 266, 318–323. Björnsson, H., F. Pálsson and M.T. Guðmundsson 2000. Surface and bedrock topography of the Mýrdalsjökull ice cap, Ice- land: The Katla caldera, eruption sites and routes of jökul- hlaups. Jökull 49, 29–46. Björnsson, S. and P. Einarsson 1981. Jarðskjálftar - "Jörðin skalf og pipraði af ótta". Náttúra Íslands (2. útgáfa). Almenna bókafélagið, Reykjavík, 121–155. Brandsdóttir, B. 1984. Seismic activity in Vatnajökull 1900–1982 with special reference to Skeiðarárhlaups, Skaftárhlaups and Vatnajökull eruptions. Jökull 34, 141–150. Brandsdóttir, B. 1992. Historical accounts of earthquakes asso- ciated with eruptive activity in the Askja volcanic system. Jökull 42, 1–12. Brandsdóttir, B. and W. Menke 2008. The seismic structure of Iceland. Jökull 58, 17–34. Einarsson, B.F. 2008. Bær við Salthöfða: eyðibýli í Öræfum. Fornleifafræðistofan, Reykjavík. Einarsson, P. 1991a. Earthquakes and present-day tectonism in Iceland. Tectonophysics 189, 261–279. Einarsson, P. 1991b. Umbrotin við Kröflu 1975–1989 (The ac- tivity of Krafla 1975–1989, in Icelandic). In: Náttúra Mý- vatns, (ed. Árni Einarsson og Arnþór Garðarsson), Hið Íslen- ska Náttúrufræðifélag, 97–139. Einarsson, P. 2008. Plate boundaries, rifts and transforms in Ice- land. Jökull 58, 35-58. Einarsson, P. 2018. Short-term seismic precursors to Ice- landic eruptions 1973–2014. Front. Earth Sci. 6:45. https://doi.org/10.3389/feart.2018.00045 Einarsson, P. and K. Sæmundsson 1987. Earthquake epicenters 1982–1985 and volcanic systems in Iceland (map). In: Í hlutarins eðli, Festschrift for Þorbjörn Sigurgeirsson, ed. Þorsteinn Sigfússon, Menningarsjóður, Reykjavík. Einarsson, P. and B. Brandsdóttir 2000. Earthquakes in the Mýr- dalsjökull area, Iceland, 1978-1985: Seasonal correlation and connection with volcanoes. Jökull 49, 59–73. Einarsson, P. and Á.R. Hjartardóttir 2015. Structure and tectonic position of the Eyjafjallajökull volcano, S-Iceland. Jökull 65, 1–16. Finnsson, H. 1767. Efterretning om Tildragelserne ved Bierget Hekla udi Island i April og fölgende Maaneder 1766. Köben- havn, 1767 (Report on the events at Mt. Hekla in Iceland in April 1766 and following months. In Danish). Referenced in Thorarinsson (1967). Geirsson, H., P. LaFemina, T. Árnadóttir, E. Sturkell, F. Sig- mundsson, M. Travis, P. Schmidt, B. Lund, S. Hreinsdóttir and R. Bennett 2012. Volcano deformation at active plate boundaries: Deep magma accumulation at Hekla volcano and plate boundary deformation in south Iceland. J. Geophys. Res. 117, B11409. https://doi.org/10.1029/2012JB009400. Geirsson, H., M.M. Parks, B.G. Ofeigsson, V. Drouin, S. Li, F. Sigmundsson, Th. Árnadóttir, A.R. Hjartardottir, M. Láren- tínusdóttir, P. Einarsson, P. Schmidth, F. Pálsson, A. Hooper and K. Jónsdóttir 2018. Reawakening of the Öræfajökull vol- cano in Iceland: deformation signals of stress triggers and intrusive activity. European Geosciences Union, General As- sembly, Vienna, April 8–13, 2018. EGU2018-15438. Gudmundsson, H.J. 1998. Holocene glacier fluctuations and tephrochronology of the Öræfi district, Iceland. Unpublished PhD thesis, University of Edinburgh, 272 pp. Gudmundsson, M.T., G. Larsen, Á. Höskuldsson and Á.G. Gylfa- son 2008. Volcanic hazards in Iceland. Jökull 58, 251–268. Guðmundsson Ó., B. Brandsdóttir, W. Menke and G.E. Sigvalda- son 1994. The crustal magma chamber of the Katla vol- cano in south Iceland revealed by 2-D seismic undershooting. Geophys J. Int. 119, 277–296. Hjartardóttir, Á.R., P. Einarsson, E. Bramham and T.J. Wright 2012. The Krafla fissure swarm, Iceland, and its for- mation by rifting events. Bull. Volc. 74, 2139–2153. https://doi.org/10.1007/s00445-012-0659-0. Hjartardóttir, Á.R., P. Einarsson and S.G. Björgvinsdóttir 2016a. Fissure swarms and fracture systems within the Western Vol- canic Zone, Iceland – effects of spreading rates. J. Struct. Geol. 91, 39–53. https://doi.org/10.1016/j.jsg.2016.08.007. Hjartardóttir, Á.R., P. Einarsson, M.T. Guðmundsson and Th. Högnadóttir 2016b. Fracture movements and graben subsidence during the 2014 Bárðarbunga dike intru- sion in Iceland. J. Volc. Geoth. Res. 310, 242–252. https://doi.org/10.1016/j.jvolgeores.2015.12.002. Íslenskir annálar 1847. Hafniae. Sumptibus legati Arnae- Magnaeni. https://ia601406.us.archive.org/14/items/- slenzkirannlars00sigugoog/slenzkirannlars00sigugoog.pdf Jakobsdóttir, S.S. 2008. Seismicity in Iceland 1994-2007. Jökull 58, 75–100. Jakobsson, S.P. 1979. Petrology of Recent basalts of the Eastern Volcanic Zone, Iceland. Acta Naturalia Islandica 26, 1–103. Jeddi Z., A. Tryggvason, Ó. Gudmundsson, 2016. The Katla vol- canic system imaged using local earthquakes recorded with a temporary seismic network. J. Geophys. Res. Solid Earth 121, 7230–7251. https://doi.org/10.1002/2016JB013044. Jóhannesson, H. 1989. Aldur Hallmundarhrauns í Borgarfirði (The age of the Hallmundarhraun lava in Borgarfjörður, in Icelandic). Fjölrit Náttúrufræðistofnunar, Institute of Natu- ral History, Reykjavík, 12 pp. JÖKULL No. 69, 2019 51
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