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Natural and Man-induced Destructive Earthquakes in Stable Continental Regions

Name: Natural and Man-induced Destructive Earthquakes in Stable Continental Regions
Keywords: Intracontinental Regions, Seismic Risks, Earthquake Activity, Magnitude

descriptionPublicationkeyboard_double_arrow_right Article 15 Jun 2020 English Zenodo

Authors: Camelbeeck, Thierry; Vanneste, Kris; Lecocq, Thomas;

doi: 10.5281/zenodo.3894460 , 10.5281/zenodo.3894459

Natural and Man-induced Destructive Earthquakes in Stable Continental Regions

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Abstract

Despite the real societal challenge posed by their important potential of destruction, the infrequent moderate and large earthquakes in tectonically-stable continental regions (SCR) have causes that are not well understood yet. Nevertheless, recent studies suggest that large earthquakes in SCR can be explained by transient disturbances of local crustal stress or fault strength because the tectonic loading on faults is very slow. In this paper, we assert that this new hypothesis is well supported by the observation that many moderate MW 5.5-6.0 SCR earthquakes are shallower than similar events in active regions. Moreover, by using the basic principles of frictional fault reactivation, we explain why these temporary stresses play a more fundamental role in the initiation of large earthquakes in SCR than at plate boundaries. As these disturbances in stresses can be related to natural environmental phenomena, but also to human activities, we also debate about the potential role of man-made earthquakes in SCR seismicity and seismic hazard. This discussion highlights the need to better understand the contribution of man-made earthquakes in the observed seismicity.

Paper presented at the meeting of the Section of Technical Sciences held on 22 February 2018. Text received on 13 November 2018 and submitted to peer review. Final version, approved by the reviewers, received on 14 May 2019.

Keywords

Intracontinental Regions, Seismic Risks, Earthquake Activity, Magnitude

63 references, page 1 of 7

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	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	0
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Average
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average

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