Davidsen, Jörn and Kwiatek, Grzegorz and Dresen, Georg (2012) No Evidence of Magnitude Clustering in an Aftershock Sequence of Nano- and Picoseismicity. Physical Review Letters, 108 (3). DOI: https://doi.org/10.1103/PhysRevLett.108.038501
Full text not available from this repository.Abstract
One of the hallmarks of our current understanding of seismicity as highlighted by the epidemic-type-aftershock sequence model is that the magnitudes of earthquakes are independent of one another and can be considered as randomly drawn from the Gutenberg-Richter distribution. This assumption forms the basis of many approaches for forecasting seismicity rates and hazard assessment. Recently, it has been suggested that the assumption of independent magnitudes is not valid. It was subsequently argued that this conclusion was not supported by the original earthquake data from California. One of the main challenges is the lack of completeness of earthquake catalogs. Here, we study an aftershock sequence of nano- and picoseismicity as observed at the Mponeng mine, for which the issue of incompleteness is much less pronounced. We show that this sequence does not exhibit any significant evidence of magnitude correlations.
[error in script]| Item Type: | Article |
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| Subjects: | Region > South Africa Inducing technology > Underground mining |
| Project: | Geo-INQUIRE > JAGUARS: Mining induced seismicity associated to gold mining |
