Seismic activity and rifting in the Krafla fault swarm in NE-Iceland
International Symposium on the Activity of Oceanic Volcanoes. Ponta Delgada, 4-9 August 1980. The Krafla volcano in the rift zone of NE-Iceland has been going through a series of inflation-deflation cycles since 1975. Magma accumulates beneath the volcano during slow inflation periods and is injecte...
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ftunivacores:oai:repositorio.uac.pt:10400.3/4919 2023-05-15T16:46:18+02:00 Seismic activity and rifting in the Krafla fault swarm in NE-Iceland Brandsdóttir, Bryndís Einarsson, Páll 1982-07 http://hdl.handle.net/10400.3/4919 eng eng Universidade dos Açores BRANDSDÓTTIR, Bryndís; EINARSSON, Páll (1982). Seismic activity and rifting in the Krafla fault swarm in NE-Iceland. "Arquipélago. Série Ciências da Natureza", 3: 57-58. http://hdl.handle.net/10400.3/4919 openAccess Krafla Volcano Volcanism Iceland article 1982 ftunivacores 2022-05-01T14:31:39Z International Symposium on the Activity of Oceanic Volcanoes. Ponta Delgada, 4-9 August 1980. The Krafla volcano in the rift zone of NE-Iceland has been going through a series of inflation-deflation cycles since 1975. Magma accumulates beneath the volcano during slow inflation periods and is injected laterally into the Krafla fault swarm during deflation events. Each deflation event has a characteristic pattern of seismic activity. It typically begins with continuous volcanic tremor and the tremor amplitude is dependent on the rate of deflation. Earthquake activity increases shortly after the deflation starts and the epicentral area is soon extended from the caldera region, along the fault swarm to the north, the south or both. The propagation speed of the seismic activity is highest in the beginning, but decreases with decreasing deflation rate and increasing length of the epicentral zone. Typical speed is 0.5 m/s, but may reach values as high as 1.2 m/s. […]. info:eu-repo/semantics/publishedVersion Article in Journal/Newspaper Iceland Repositório da Universidade dos Açores Krafla ENVELOPE(-16.747,-16.747,65.713,65.713) |
institution |
Open Polar |
collection |
Repositório da Universidade dos Açores |
op_collection_id |
ftunivacores |
language |
English |
topic |
Krafla Volcano Volcanism Iceland |
spellingShingle |
Krafla Volcano Volcanism Iceland Brandsdóttir, Bryndís Einarsson, Páll Seismic activity and rifting in the Krafla fault swarm in NE-Iceland |
topic_facet |
Krafla Volcano Volcanism Iceland |
description |
International Symposium on the Activity of Oceanic Volcanoes. Ponta Delgada, 4-9 August 1980. The Krafla volcano in the rift zone of NE-Iceland has been going through a series of inflation-deflation cycles since 1975. Magma accumulates beneath the volcano during slow inflation periods and is injected laterally into the Krafla fault swarm during deflation events. Each deflation event has a characteristic pattern of seismic activity. It typically begins with continuous volcanic tremor and the tremor amplitude is dependent on the rate of deflation. Earthquake activity increases shortly after the deflation starts and the epicentral area is soon extended from the caldera region, along the fault swarm to the north, the south or both. The propagation speed of the seismic activity is highest in the beginning, but decreases with decreasing deflation rate and increasing length of the epicentral zone. Typical speed is 0.5 m/s, but may reach values as high as 1.2 m/s. […]. info:eu-repo/semantics/publishedVersion |
format |
Article in Journal/Newspaper |
author |
Brandsdóttir, Bryndís Einarsson, Páll |
author_facet |
Brandsdóttir, Bryndís Einarsson, Páll |
author_sort |
Brandsdóttir, Bryndís |
title |
Seismic activity and rifting in the Krafla fault swarm in NE-Iceland |
title_short |
Seismic activity and rifting in the Krafla fault swarm in NE-Iceland |
title_full |
Seismic activity and rifting in the Krafla fault swarm in NE-Iceland |
title_fullStr |
Seismic activity and rifting in the Krafla fault swarm in NE-Iceland |
title_full_unstemmed |
Seismic activity and rifting in the Krafla fault swarm in NE-Iceland |
title_sort |
seismic activity and rifting in the krafla fault swarm in ne-iceland |
publisher |
Universidade dos Açores |
publishDate |
1982 |
url |
http://hdl.handle.net/10400.3/4919 |
long_lat |
ENVELOPE(-16.747,-16.747,65.713,65.713) |
geographic |
Krafla |
geographic_facet |
Krafla |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
BRANDSDÓTTIR, Bryndís; EINARSSON, Páll (1982). Seismic activity and rifting in the Krafla fault swarm in NE-Iceland. "Arquipélago. Série Ciências da Natureza", 3: 57-58. http://hdl.handle.net/10400.3/4919 |
op_rights |
openAccess |
_version_ |
1766036399368175616 |