Surface effects of triggered fault slip on Reykjanes Peninsula, SW Iceland
Three large earthquakes (Mw>4.5) were triggered within 5 min, 85 km west of a Mw 6.5 earthquake in the South Iceland Seismic Zone (SISZ). We report on surface effects of these triggered earthquakes, which include fresh rupture, widespread rockfall, disrupted rockslides and block slides. Field dat...
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Online Access: | http://hdl.handle.net/11568/500669 https://doi.org/10.1016/S0040-1951(03)00201-4 https://www.sciencedirect.com/science/article/pii/S0040195103002014 |
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ftunivpisairis:oai:arpi.unipi.it:11568/500669 2024-02-27T08:41:53+00:00 Surface effects of triggered fault slip on Reykjanes Peninsula, SW Iceland A. Clifton PAGLI, CAROLINA J. Jonsdottir K. Eythorsdottir K. Vogfjord A., Clifton Pagli, Carolina J., Jonsdottir K., Eythorsdottir K., Vogfjord 2003 http://hdl.handle.net/11568/500669 https://doi.org/10.1016/S0040-1951(03)00201-4 https://www.sciencedirect.com/science/article/pii/S0040195103002014 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000184630100002 volume:369 issue:3/4 firstpage:145 lastpage:154 numberofpages:10 journal:TECTONOPHYSICS http://hdl.handle.net/11568/500669 doi:10.1016/S0040-1951(03)00201-4 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0042570712 https://www.sciencedirect.com/science/article/pii/S0040195103002014 info:eu-repo/semantics/article 2003 ftunivpisairis https://doi.org/10.1016/S0040-1951(03)00201-4 2024-01-31T17:45:10Z Three large earthquakes (Mw>4.5) were triggered within 5 min, 85 km west of a Mw 6.5 earthquake in the South Iceland Seismic Zone (SISZ). We report on surface effects of these triggered earthquakes, which include fresh rupture, widespread rockfall, disrupted rockslides and block slides. Field data confirm that the earthquakes occurred along N-striking right-lateral strike-slip faults. Field data also support the conclusion from modeling of InSAR data that deformation from the second triggered event was more significant than for the other two. A major hydrological effect was the draining of water through an open fissure on a lake bed, lowering the lake level by greater than 4 m. Field relationships suggest that a component of aseismic slip could have been facilitated by water draining into the fault zone. Article in Journal/Newspaper Iceland ARPI - Archivio della Ricerca dell'Università di Pisa Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Tectonophysics 369 3-4 145 154 |
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Open Polar |
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ARPI - Archivio della Ricerca dell'Università di Pisa |
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ftunivpisairis |
language |
English |
description |
Three large earthquakes (Mw>4.5) were triggered within 5 min, 85 km west of a Mw 6.5 earthquake in the South Iceland Seismic Zone (SISZ). We report on surface effects of these triggered earthquakes, which include fresh rupture, widespread rockfall, disrupted rockslides and block slides. Field data confirm that the earthquakes occurred along N-striking right-lateral strike-slip faults. Field data also support the conclusion from modeling of InSAR data that deformation from the second triggered event was more significant than for the other two. A major hydrological effect was the draining of water through an open fissure on a lake bed, lowering the lake level by greater than 4 m. Field relationships suggest that a component of aseismic slip could have been facilitated by water draining into the fault zone. |
author2 |
A., Clifton Pagli, Carolina J., Jonsdottir K., Eythorsdottir K., Vogfjord |
format |
Article in Journal/Newspaper |
author |
A. Clifton PAGLI, CAROLINA J. Jonsdottir K. Eythorsdottir K. Vogfjord |
spellingShingle |
A. Clifton PAGLI, CAROLINA J. Jonsdottir K. Eythorsdottir K. Vogfjord Surface effects of triggered fault slip on Reykjanes Peninsula, SW Iceland |
author_facet |
A. Clifton PAGLI, CAROLINA J. Jonsdottir K. Eythorsdottir K. Vogfjord |
author_sort |
A. Clifton |
title |
Surface effects of triggered fault slip on Reykjanes Peninsula, SW Iceland |
title_short |
Surface effects of triggered fault slip on Reykjanes Peninsula, SW Iceland |
title_full |
Surface effects of triggered fault slip on Reykjanes Peninsula, SW Iceland |
title_fullStr |
Surface effects of triggered fault slip on Reykjanes Peninsula, SW Iceland |
title_full_unstemmed |
Surface effects of triggered fault slip on Reykjanes Peninsula, SW Iceland |
title_sort |
surface effects of triggered fault slip on reykjanes peninsula, sw iceland |
publishDate |
2003 |
url |
http://hdl.handle.net/11568/500669 https://doi.org/10.1016/S0040-1951(03)00201-4 https://www.sciencedirect.com/science/article/pii/S0040195103002014 |
long_lat |
ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Reykjanes |
geographic_facet |
Reykjanes |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000184630100002 volume:369 issue:3/4 firstpage:145 lastpage:154 numberofpages:10 journal:TECTONOPHYSICS http://hdl.handle.net/11568/500669 doi:10.1016/S0040-1951(03)00201-4 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0042570712 https://www.sciencedirect.com/science/article/pii/S0040195103002014 |
op_doi |
https://doi.org/10.1016/S0040-1951(03)00201-4 |
container_title |
Tectonophysics |
container_volume |
369 |
container_issue |
3-4 |
container_start_page |
145 |
op_container_end_page |
154 |
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1792049246263836672 |