The Influence of Earthquake Magnitude on Hazard Related to Induced Seismicity

Edwards, Benjamin ORCID: 0000-0001-5648-8015
(2015) The Influence of Earthquake Magnitude on Hazard Related to Induced Seismicity. In: Perspectives on European Earthquake Engineering and Seismology. Springer International Publishing, pp. 429-442. ISBN 978-3-319-16963-7

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An increased focus on seismic hazard related to induced seismicity means that state-of-the-art approaches for earthquake monitoring and hazard estimation associated to tectonic earthquakes are now being applied at smaller and smaller scales. This chapter focuses on a specific issue related to this shift of focus to relatively small earthquakes in close proximity to urban areas. In tectonic earthquake hazard analyses we typically rely on a simple power-law scaling relating earthquake magnitude and recurrence. It is known, however, that for smaller earthquakes, the scaling between different magnitude types is not necessarily linear – meaning that a power law cannot be maintained over all magnitude types. Extrapolation to estimate the recurrence of earthquakes not yet recorded at the study site is therefore non-trivial. For earthquake hazard, the moment magnitude is typically used as input as it is easy to relate to ground motion through empirical equations or simulation approaches. However, for earthquake monitoring, maintaining a complete catalogue including moment magnitude of small events is technically difficult. Instead, a point-measure based magnitude, such as the local magnitude is usually determined. In the following the impact of the non-linear scaling between the magnitude of choice for local monitoring – the local magnitude – and that used for hazard analysis – the moment magnitude – is explored.

Item Type: Book Section
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Depositing User: Symplectic Admin
Date Deposited: 01 Oct 2015 15:43
Last Modified: 15 Dec 2022 12:07
DOI: 10.1007/978-3-319-16964-4_18
Publisher's Statement : © The Author(s) 2015 A. Ansal (ed.), Perspectives on European Earthquake Engineering and Seismology, Geotechnical, Geological and Earthquake Engineering 39, DOI 10.1007/978-3-319-16964-4_18. This chapter is distributed under the terms of the Creative Commons Attribution Noncommercial License, which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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