Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific


This study presents an analysis of seismic cutoff depth and heat flow field of the Fennoscandian Shield. Altogether 4190 earthquake events from years 2000-2015 in Finnish and Swedish national catalogues have been applied for this purpose. To model the heat flow field, 223 values from both countries and their neighbouring areas were used to find out if any correlation between the maximum earthquake focal depth (cutoff depth) and surface heat flow exists. Because heat flow and cutoff depth appear unrelated, it seems evident that regional variations of heat flow are caused by shallow lying variations (i.e., in upper crust) in heat production instead of deeper sources. Therefore one-dimensional layer models with temperature-dependent thermal conductivity are functional for the shield area.
Original languageEnglish
Title of host publicationLithosphere 2016 : Ninth Symposium on the Structure, Composition and Evolution of the Lithosphere in Fennoscandia Programme and Extended Abstracts
EditorsIlmo Kukkonen ... [et al.]
Number of pages4
Place of PublicationHelsinki
PublisherInstitute of Seismology, University of Helsinki
Publication date2016
ISBN (Print)978-952-10-5081-7
ISBN (Electronic)978-952-10-9282-5
Publication statusPublished - 2016
MoE publication typeB3 Article in conference proceedings
EventLitosphere Symposium - Espoo, Finland
Duration: 9 Nov 201611 Nov 2016
Conference number: 9

Publication series

NameReport. S
PublisherUniversity of Helsinki, Institute of Seismology
ISSN (Print)0357-3060

Fields of Science

  • 1171 Geosciences

Cite this