Seismicity and Sources of Stress in Fennoscandia
This chapter investigates the Fennoscandian uplift area since the latest Ice Age and addresses the question if glacial isostatic adjustment may influence current seismicity. The region is in an intraplate area, with stresses caused by the lithospheric relative plate motions. Discussions on whether u...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/346875 2024-01-07T09:43:08+01:00 Seismicity and Sources of Stress in Fennoscandia Gregersen, S. LIndholm, Conrad Korja, Annakaisa Lund, Björn Uski, Marja Oinonen, Kati Voss, Peter H Kieding, Marie Steffen, Holger Olesen, Odleiv Sutinen, Raimo Department of Geosciences and Geography Institute of Seismology 2022-08-11T11:29:41Z 20 application/pdf http://hdl.handle.net/10138/346875 eng eng 10.1017/9781108779906.014 Glacially-Triggered Faulting 978-1-108-49002-3 978-1-108-77990-6 Gregersen , S , LIndholm , C , Korja , A , Lund , B , Uski , M , Oinonen , K , Voss , P H & Kieding , M 2021 , Seismicity and Sources of Stress in Fennoscandia . in H Steffen , O Olesen & R Sutinen (eds) , Glacially-Triggered Faulting . Cambridge University Press , Cambridge , pp. 177-197 . https://doi.org/10.1017/9781108779906.014 ORCID: /0000-0001-9211-8273/work/107671108 ORCID: /0000-0001-8940-9248/work/107673891 eb2e0f45-1cae-4e28-9ccb-6ab49f960704 http://hdl.handle.net/10138/346875 openAccess info:eu-repo/semantics/openAccess 1171 Geosciences seismicity earthquake Fennoscandia stress glacially-triggered Chapter publishedVersion 2022 ftunivhelsihelda 2023-12-14T00:04:56Z This chapter investigates the Fennoscandian uplift area since the latest Ice Age and addresses the question if glacial isostatic adjustment may influence current seismicity. The region is in an intraplate area, with stresses caused by the lithospheric relative plate motions. Discussions on whether uplift and plate tectonics are the only causes of stress have been going on for many years in the scientific community. This review considers the improved sensitivity of the seismograph networks, and at the same time attempts to omit man-made explosions and mining events in the pattern, to present the best possible earthquake pattern. Stress orientations and their connection to the uplift pattern and known tectonics are evaluated. Besides plate motion and uplift, one finds that some regions are affected stress-wise by differences in geographical sediment loading as well as by topography variations. The stress release in the present-day earthquakes shows a pattern that deviates from that of the time right after the Ice Age. This chapter treats the stress pattern generalized for Fennoscandia and guides the interested reader to more details in the national chapters. Peer reviewed Article in Journal/Newspaper Fennoscandia Fennoscandian HELDA – University of Helsinki Open Repository 177 197 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
1171 Geosciences seismicity earthquake Fennoscandia stress glacially-triggered |
spellingShingle |
1171 Geosciences seismicity earthquake Fennoscandia stress glacially-triggered Gregersen, S. LIndholm, Conrad Korja, Annakaisa Lund, Björn Uski, Marja Oinonen, Kati Voss, Peter H Kieding, Marie Seismicity and Sources of Stress in Fennoscandia |
topic_facet |
1171 Geosciences seismicity earthquake Fennoscandia stress glacially-triggered |
description |
This chapter investigates the Fennoscandian uplift area since the latest Ice Age and addresses the question if glacial isostatic adjustment may influence current seismicity. The region is in an intraplate area, with stresses caused by the lithospheric relative plate motions. Discussions on whether uplift and plate tectonics are the only causes of stress have been going on for many years in the scientific community. This review considers the improved sensitivity of the seismograph networks, and at the same time attempts to omit man-made explosions and mining events in the pattern, to present the best possible earthquake pattern. Stress orientations and their connection to the uplift pattern and known tectonics are evaluated. Besides plate motion and uplift, one finds that some regions are affected stress-wise by differences in geographical sediment loading as well as by topography variations. The stress release in the present-day earthquakes shows a pattern that deviates from that of the time right after the Ice Age. This chapter treats the stress pattern generalized for Fennoscandia and guides the interested reader to more details in the national chapters. Peer reviewed |
author2 |
Steffen, Holger Olesen, Odleiv Sutinen, Raimo Department of Geosciences and Geography Institute of Seismology |
format |
Article in Journal/Newspaper |
author |
Gregersen, S. LIndholm, Conrad Korja, Annakaisa Lund, Björn Uski, Marja Oinonen, Kati Voss, Peter H Kieding, Marie |
author_facet |
Gregersen, S. LIndholm, Conrad Korja, Annakaisa Lund, Björn Uski, Marja Oinonen, Kati Voss, Peter H Kieding, Marie |
author_sort |
Gregersen, S. |
title |
Seismicity and Sources of Stress in Fennoscandia |
title_short |
Seismicity and Sources of Stress in Fennoscandia |
title_full |
Seismicity and Sources of Stress in Fennoscandia |
title_fullStr |
Seismicity and Sources of Stress in Fennoscandia |
title_full_unstemmed |
Seismicity and Sources of Stress in Fennoscandia |
title_sort |
seismicity and sources of stress in fennoscandia |
publishDate |
2022 |
url |
http://hdl.handle.net/10138/346875 |
genre |
Fennoscandia Fennoscandian |
genre_facet |
Fennoscandia Fennoscandian |
op_relation |
10.1017/9781108779906.014 Glacially-Triggered Faulting 978-1-108-49002-3 978-1-108-77990-6 Gregersen , S , LIndholm , C , Korja , A , Lund , B , Uski , M , Oinonen , K , Voss , P H & Kieding , M 2021 , Seismicity and Sources of Stress in Fennoscandia . in H Steffen , O Olesen & R Sutinen (eds) , Glacially-Triggered Faulting . Cambridge University Press , Cambridge , pp. 177-197 . https://doi.org/10.1017/9781108779906.014 ORCID: /0000-0001-9211-8273/work/107671108 ORCID: /0000-0001-8940-9248/work/107673891 eb2e0f45-1cae-4e28-9ccb-6ab49f960704 http://hdl.handle.net/10138/346875 |
op_rights |
openAccess info:eu-repo/semantics/openAccess |
container_start_page |
177 |
op_container_end_page |
197 |
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1787424395812143104 |