New mass increase beneath Askja volcano, Iceland - a precursor to renewed activity?

Terra Nova

Volumn 22, Issue 4, 2010, Pages 309-313

  Rymer, Hazel ^a   Locke, Corinne ^b   Ófeigsson, Benedikt G ^c   Einarsson, Páll ^c   Sturkell, Erik ^c,d  

^a OPEN UNIVERSITY   (United Kingdom)

^b UNIVERSITY OF AUCKLAND   (New Zealand)

^c UNIVERSITY OF ICELAND   (Iceland)

^d UNIVERSITY OF GOTHENBURG   (Sweden)

Author keywords

[No Author keywords available]

Indexed keywords

CALDERA; EARTHQUAKE PRECURSOR; MAGMA; PLATE BOUNDARY; RIFT ZONE; VOLCANIC ERUPTION;

ASKJA; ICELAND;

EID: 77955169506     PISSN: 09544879     EISSN: 13653121     Source Type: Journal    
DOI: 10.1111/j.1365-3121.2010.00948.x     Document Type: Article

References (35)

1. Andrew REB, Gudmundsson A. Volcanoes as elastic inclusions: their effects on the propagation of dykes, volcanic fissures, and volcanic zones in Iceland. J. Volcanol. Geoth. Res. 2008, 177:1045-1054.
2. Battaglia M, Segall P. The interpretation of gravity changes and crustal deformation in active volcanic areas. Pure Appl. Geophys. 2004, 161:1453-1467. http://dx.doi.org/10.1007/s00024-004-2514-5, doi:
3. Berrino G, Corrado G, Luongo G, Toro B. Ground deformation and gravity changes accompanying the 1982 Pozzuoli up-lift. Bull. Volcanol. 1984, 47:188-200.
4. Berrino G, Rymer H, Brown GC, Corrado G. Gravity- height correlations for unrest at calderas. J. Volcanol. Geoth. Res. 1992, 53:11-26.
5. Bonafede M, Ferrari C. Analytical models of deformation and residual gravity changes due to a Mogi source in a viscoelastic medium. Tectonophysics 2009, 471:4-13. http://dx.doi.org/10.1016/j.tecto.2008.10.006, doi:
6. Buck WR, Einarsson P, Brandsdóttir B. Tectonic stress and magma chamber size as controls on dike propagation: constraints from the 1975-1984 Krafla rifting episode. J. Geophys. Res. 2006, 111. http://dx.doi.org/10.1029/2005JB003879, doi:
7. Einarsson P. Earthquakes and present-day tectonism in Iceland. Tectonophysics 1991, 189:261-279.
8. Einarsson P. Plate boundaries, rifts and transforms in Iceland. Jökull 2008, 58:35-58.
9. Einarsson P, Sæmundsson K. Earthquake epicenters 1982-1985 and volcanic systems in Iceland (map). Í hlutarins e{eth}li, Festscrift for {Thorn}orbjörn Sigurgeirsson 1987, Sigfússon, ed.), Menningarsjó{eth}ur, Reykjavík
10. Gottsmann J, Rymer H. Deflation during caldera unrest: constraints on subsurface processes and hazard prediction from gravity-height data. Bull. Volcanol. 2002, 64:338-348.
11. Gudmundsson A, Andrew REB. Mechanical interaction between active volcanoes in Iceland. Geophys. Res. Lett. 2007, 34. http://dx.doi.org/10.1029/2007gl029873, doi:
12. Jakobsdóttir SS. Seismicity in Iceland: 1994-2007. Jökull 2008, 58:75-100.
13. Jakobsdottir SS, Roberts MJ, Gudmundsson GB, Giersson H, Slunga R. Earthquake swarms at Upptyppingar, north-east Iceland: a sign of magma intrusion? Stud. Geophys. Geod. 2008, 52:513-528.
14. Knox C. Earthquakes Near Askja on the North Iceland Plate Boundary 2007, 1-77. Bullard Laboratories, University of Cambridge, Cambridge, pp
15. LaFehr TR. Standardization in gravity reduction. Geophysics 1991, 56:1170-1178.
16. Masterlark T. Magma intrusion and deformation predictions: sensitivities to the Mogi assumptions. J. Geophys. Res. 2007, 112. http://dx.doi.org/10.1029/2006jb004860, doi:
17. Pagli C, Sigmundsson F, Árnadóttir T, Einarsson P, Sturkell E. Deflation of the Askja volcanic system: constraints on the deformation source from combined inversion of satellite radar interferograms and GPS measurements. J. Volcanol. Geoth. Res. 2006, 152:97-108. http://dx.doi.org/10.1016/j.jvolgeores.2005.09.014, doi:
18. Rymer H. A contribution to precise microgravity data analysis using LaCoste and Romberg gravity meters. Geophys. J. 1989, 97:311-322.
19. Rymer H. Microgravity changes as a precursor to volcanic activity. J. Volcanol. Geoth. Res. 1994, 61:311-329.
20. Rymer H, Tryggvason E. Gravity and elevation changes at Askja, Iceland. Bull. Volcanol. 1993, 55:362-371.
21. Rymer H, Williams-Jones G. Volcanic eruption prediction: magma chamber physics from gravity and deformation measurements. Geophys. Res. Lett. 2000, 27:2389-2392.
22. Rymer H, Cassidy J, Locke CA, Sigmundsson F. Post eruptive gravity changes from 1990-1996 at Krafla volcano, Iceland. J. Volcanol. Geoth. Res. 1998, 87:141-149.
23. Saemundsson K. Fissure swarms and central volcanoes of the neo-volcanic zones of Iceland. Geol. J. Spec. Issue 1978, 10:415-432.
24. Sigurdsson H, Sparks RSJ. Rifting episode in northern Iceland in 1874-1875 and the eruptions of Askja and Sveinagja. Bull. Volcanol. 1978, 41:149-167.
25. Soosalu H, Key J, White RS, Knox C, Einarsson P, Jakobsdóttir SS. Lower-crustal earthquakes caused by magma movement beneath Askja volcano on the north Iceland rift. Bull. Volcanol. 2009, 72:55-62.
26. Sturkell E, Sigmundsson F. Continuous deflation of the Askja caldera, Iceland, during the 1993-1998 noneruptive period. J. Geophys. Res. 2000, 105:25671-25684.
27. Sturkell E, Sigmundsson F, Slunga R. 1983-2003 decaying rate of deflation at Askja caldera: pressure decrease in an extensive magma plumbing system at a spreading plate boundary. Bull. Volcanol. 2006a, 68:727-735.
28. Sturkell E, Einarsson P, Sigmundsson F, Geirsson H, Olafsson H, Pederson R, de Zeeuw-van Daldsen E, Linde AT, Sacks SI, Stefansson R. Volcano geodesy and magma dynamics in Iceland. J. Volcanol. Geoth. Res. 2006b, 150:14-34.
29. Sturkell E, Sigmundsson F, Geirsson H, Olafsson H, Theodorsson T. Multiple volcano deformation sources in a post-rifting period: 1989-2005 behaviour of Krafla, Iceland constrained by levelling, tilt and GPS observations. J. Volcanol. Geoth. Res. 2008, 177:405-417.
30. Thórarinsson S, Sigvaldason GE. The eruption of Askja, 1961. A preliminary report. Am. J. Sci. 1962, 260:641-651.
31. {Thorn}orbjarnardóttir B, Gu{eth}mundsson GB, Hjaltadóttir S, Roberts MJ. Seismicity in Iceland during 2006. Jökull 2007, 57:45-59.
32. Tryggvason E. Ground deformation in Askja, Iceland: its source and possible relation to flow of the mantle plume. J. Volcanol. Geoth. Res. 1989, 39:61-71.
33. Williams-Jones G, Rymer H, Mauri G, Gottsmann J, Poland M, Carbone D. Towards continuous 4D microgravity monitoring of volcanoes. Geophysics 2008, 73:WA19-WA28.
34. de Zeeuw-van Dalfsen E, Rymer H, Sigmundsson F, Sturkell E. Net gravity decrease at Askja Volcano, Iceland: constraints on processes responsible for continuous caldera deflation, 1988-2003. J. Volcanol. Geoth. Res. 2005, 139:227-239. http://dx.doi.org/10.1016/j.volgeores.2004.08.008, doi:
35. de Zeeuw-van Dalfsen E, Rymer H, Williams-Jones G, Sturkell E, Sigmundsson F. The integration of micro-gravity and geodetic data at Krafla Volcano, N. Iceland. Bull. Volcanol. 2006, 68:420-431. http://dx.doi.org/10.1007/s0445-005-0018-5, doi: