Seismic signs of magma pathways through the crust in the Eyjafjallajökull
volcano, South Iceland
S. Hjaltadóttir, K. Vogfjörd, and R. Slunga. VI 2009-013. Vedurstofa Islands / Icelandic Meteorological Office, Reykjavik, Iceland, (December 2009)
Abstract
Earthquakes recorded in Eyjafjallajökull between 1991 and 2006
by the SIL-network are relocated using a double-difference method
and their mechanisms are analysed. Three main swarms occurred during
this period, in 1994, 1996, and 1999-2000, two of which were accompanied
by surface uplift. The relocated seismic distribution forms an overall
pipe-like pattern beneath the northern edge of the ice cap, extends
through the crust from the crust-mantle boundary and shows the feeder
channel in the volcano. During the latter intrusion swarm (1999-2000)
seismicity migrated southwards, towards the centre of uplift. The
1996 swarm occurred at the crust-mantle boundary and indicates a
period of magma transport up into the crust from the mantle. The
fourth seismic swarm, which occurred in 2009, during preparation
of this report, is discussed in Appendix II.
%0 Report
%1 hjaltadottir_etal:2009
%A Hjaltadóttir, Sigurlaug
%A Vogfjörd, Krist'ın S.
%A Slunga, Ragnar
%C Reykjavik, Iceland
%D 2009
%K geophysics seismology
%N VI 2009-013
%T Seismic signs of magma pathways through the crust in the Eyjafjallajökull
volcano, South Iceland
%U http://www.webcitation.org/5p3fKftxd
%X Earthquakes recorded in Eyjafjallajökull between 1991 and 2006
by the SIL-network are relocated using a double-difference method
and their mechanisms are analysed. Three main swarms occurred during
this period, in 1994, 1996, and 1999-2000, two of which were accompanied
by surface uplift. The relocated seismic distribution forms an overall
pipe-like pattern beneath the northern edge of the ice cap, extends
through the crust from the crust-mantle boundary and shows the feeder
channel in the volcano. During the latter intrusion swarm (1999-2000)
seismicity migrated southwards, towards the centre of uplift. The
1996 swarm occurred at the crust-mantle boundary and indicates a
period of magma transport up into the crust from the mantle. The
fourth seismic swarm, which occurred in 2009, during preparation
of this report, is discussed in Appendix II.
@techreport{hjaltadottir_etal:2009,
abstract = {Earthquakes recorded in Eyjafjallaj\"{o}kull between 1991 and 2006
by the SIL-network are relocated using a double-difference method
and their mechanisms are analysed. Three main swarms occurred during
this period, in 1994, 1996, and 1999-2000, two of which were accompanied
by surface uplift. The relocated seismic distribution forms an overall
pipe-like pattern beneath the northern edge of the ice cap, extends
through the crust from the crust-mantle boundary and shows the feeder
channel in the volcano. During the latter intrusion swarm (1999-2000)
seismicity migrated southwards, towards the centre of uplift. The
1996 swarm occurred at the crust-mantle boundary and indicates a
period of magma transport up into the crust from the mantle. The
fourth seismic swarm, which occurred in 2009, during preparation
of this report, is discussed in Appendix II.},
added-at = {2012-09-01T13:08:21.000+0200},
address = {Reykjavik, Iceland},
author = {Hjaltad\'{o}ttir, Sigurlaug and Vogfj\"{o}rd, Krist'{\i}n S. and Slunga, Ragnar},
biburl = {https://www.bibsonomy.org/bibtex/2c766e0ce557f828274255fb53d950530/nilsma},
institution = {Vedurstofa Islands / Icelandic Meteorological Office},
interhash = {92cc5ebe5ce2dfe68e96256d3fe69df2},
intrahash = {c766e0ce557f828274255fb53d950530},
issn = {1670-8261},
keywords = {geophysics seismology},
month = dec,
number = {VI 2009-013},
timestamp = {2021-02-09T13:26:52.000+0100},
title = {Seismic signs of magma pathways through the crust in the Eyjafjallaj\"{o}kull
volcano, South Iceland},
url = {http://www.webcitation.org/5p3fKftxd},
year = 2009
}