Jökull - 01.01.2019, Qupperneq 70

The 2011 unrest at Katla volcano
Guðmundsson, M.T., Þ. Högnadóttir, A.B. Kristinsson
and B. Guðbjörnsson 2007. Geothermal activity in the
subglacial Katla caldera, Iceland, 1999–2005, studied
with radar altimetry. Ann. Glaciol. 45, 66–72.
Guðmundsson, M.T. and J. Sólnes 2013. Activity at Katla
and jökulhlaup in Múlakvísl river 2011 (in Icelandic).
In: Sólnes J., F. Sigmundsson, and B. Bessason (eds.).
Natural Hazard in Iceland: Volcanic eruptions and
earthquakes. University of Iceland Press, 228–229 (in
Icelandic).
Jeddi, Z., A. Tryggvason and Ó. Gudmundsson 2016.
The Katla volcanic system imaged using local earth-
quakes recorded with a temporary seismic net-
work. J. Geophys. Res. Solid Earth 121, 7230–7251.
https://doi.org/10.1002/2016JB013044
Jeddi Z., G. Sgattoni, Ó. Guðmundsson, A. Tryggva-
son and B. Lund 2017. A peculiar cluster of mi-
croearthquakes on the eastern flank of Katla volcano,
southern Iceland. Jökull 67, 1–16.
Jonsson, G. and L. Kristjánsson 2000. Aeromagnetic mea-
surements over Mýrdalsjökull and vicinity. Jökull 49,
47–58.
Jóhannesson, H. and K. Sæmundsson 2009. Geological
Map of Iceland, 1:600.000. Bedrock Geology. Ice-
landic Institute of Natural History, Reykjavík (1st ed.).
Jónsdóttir, K., R. Roberts, V. Phjola, B. Lund, Z.H. Shom-
lai, A. Tryggvason and R. Böðvarsson 2009. Glacial
long period seismic events at Katla volcano, Iceland.
Geophys. Res. Lett. 36, L11402.
Jónsdóttir, K., A. Tryggvason, R. Roberts, B. Lund, H.
Soosalu and R. Böðvarsson 2007. Habits of a glacier
covered volcano: seismicity and a structure study of
the Katla volcano, South Iceland. Ann. Glaciol. 45,
169–177.
Lacasse, C., H. Sigurðsson, S.N. Carey, H. Jóhannesson,
L.E. Thomas and N.W. Rogers 2007. Bimodal vol-
canism at the Katla subglacial caldera, Iceland: In-
sight into the geochemistry and petrogenesis of rhy-
olitic magmas. Bull. Volcanol. 69, 373–399.
Larsen, G. 2000. Holocene eruptions within the Katla vol-
canic system, south Iceland: characteristics and envi-
ronmental impact. Jökull 49, 1–28.
Larsen, G., A.J. Newton, A.J. Dugmore and E.G. Vil-
mundardóttir 2001. Geochemistry, dispersal, volumes
and chronology of Holocene silicic tephra layers from
the Katla volcano system, Iceland. J. Quat. Sci. 16,
119–132.
Lescinsky, D.T. and J.H. Fink 2000. Lava and ice interac-
tion at stratovolcanoes: use of characteristic features
to determine past glacial extents and future volcanic
hazards. J. Geophys. Res. 105(B10), 23711–23726.
Major, J.J. and C.G. Newhall 1989. Snow and ice pertur-
bation during historical volcanic eruptions and the for-
mation of lahars and floods. Bull. Volcanol. 52, 1–27.
https://doi.org/10.1007/BF00641384.
McGarvie, D. 2009. Rhyolitic volcano-ice interactions in
Iceland. J. Volcanol. Geotherm. Res. 185, 367–389.
https://doi.org/10.1016/j.jvolgeores.2008.11.019.
Norðdahl, H. 1991. Late Weichselian and Early Holocene
deglaciation of Iceland. Jökull 40, 27–50.
Óladóttir, B.A., G. Larsen, Th. Thordarson and O.
Sigmarsson 2005. The Katla volcano, S-Iceland:
Holocene tephra stratigraphy and eruption frequency.
Jökull 55, 53–74.
Óladóttir, B. A., O. Sigmarsson, G. Larsen and Th. Thord-
arson 2008. Katla volcano, Iceland: Magma compo-
sition, dynamics and eruption frequency as recorded
by Holocene tephra layers. B. Volcanol. 70, 475–493.
https://doi.org/10.1007/s00445-007-0150-5.
Roberts, M.J., F.S. Tweed, A.J. Russell, Ó. Knudsen and
T.D. Harris 2003. Hydrological and geomorphic ef-
fects of temporary ice-dammed lake formation dur-
ing jökulhlaups. Earth Surf. Processes Landforms 28,
723–737.
Sæmundsson, Þ., J.M.-C. Belart, P. Einarsson, H. Geirs-
son, Á.R. Hjartardóttir, E. Magnússon, F. Pálsson and
G.B.M. Pedersen 2020. Slope deformation above the
Tungnakvíslarjökull outlet glacier in western part of
the Mýrdalsjökull glacier – causes and consequences.
Nordic Geological Winter Meeting, January 8-10,
2020, Oslo, Norway. Abstract Volume.
Sigurðsson, O., S. Zóphoníasson and E. Ísleifsson 2000.
Jökulhlaup úr Sólheimajökli 18. júlí 1999 (The jökul-
hlaup from Sólheimajökull July 18, 1999, in Icelandic
with English summary). Jökull 49, 75–80.
Sgattoni, G., Ó. Gudmundsson, P. Einarsson and F. Luc-
chi 2016a. Joint relative location of earthquakes with-
out a predefined velocity model: an example from
a peculiar seismic cluster on Katla volcano’s south-
flank (Iceland). J. Geophys. Int. 207(2), 1244–1257.
https://doi.org/10.1093/gji/ggw331.
Sgattoni, G, Z. Jeddi, Ó. Gudmundsson, P. Einarsson,
A. Tryggvason, B. Lund and F. Lucchi 2016b. Long-
period seismic events with strikingly regular temporal
patterns on Katla volcano’s south flank (Iceland). J.
Volcanol. Geotherm. Res. 324, 28–40.
JÖKULL No. 69, 2019 69