Encyclopedia of Engineering Geology

Living Edition
| Editors: Peter Bobrowsky, Brian Marker

Induced Seismicity

Living reference work entry
DOI: https://doi.org/10.1007/978-3-319-12127-7_168-1

Synonyms

Definition

Induced seismicity refers to earthquakes and seismic events resulting from human activity (Lamontagne 2013). This often involves critically stressed faults which subsequently experience an increase in stress, for example, due to stress redistributions during mining or loading due to the added weight of a dam reservoir. Alternatively, induced seismicity may be triggered if a critically stressed fault experiences a decrease in effective stress due to fluid injection, for example, during waste water injection or hydraulic fracturing for geothermal or hydrocarbon energy extraction.

Characteristics and Experiences

It is well established that earthquakes can be induced by stress changes or fluid injection. Underground mining alters the in situ stress state present at depth. Where faults intersect or are adjacent to an excavation, this can cause both an increase in shear driving stress and a reduction in...

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References

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Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  1. 1.Geological Engineering, Department of Earth, Ocean and Atmospheric SciencesUniversity of British ColumbiaVancouverCanada