Together with colleagues from Canada, Spain and Russia we finally published a manuscript entitled “What Controls the Presence and Characteristics of Aftershocks in Rock Fracture in the Lab?” in Journal of Geophysical Research: Solid Earth. The key points of the manuscript can be summarized as follows:
- Spatial localization of seismic events during macroscopic fracture nucleation as well as during actual crack propagation occurs without temporal (Omori-type) correlations.
- Post-fracture stress relaxation processes and large-scale stress heterogeneities lead to aftershock triggering.
- Compaction and double-couple events, as estimated using full moment tensor inversion of acoustic emission events, play a dominant role for aftershock triggering in the lab.
Davidsen, J., T. Goebel, G. Kwiatek, S. Stanchits, J. Baró, and G. Dresen (2021). What Controls the Presence and Characteristics of Aftershocks in Rock Fracture in the Lab? Journal of Geophysical Research: Solid Earth 126, e2021JB022539, DOI: 10.1029/2021JB022539. [ Article Page ] [ Link to associated data publication ]