Cho, N. F. and Tiampo, Kristy F. and Mckinnon, S. D. and Vallejos, J. A. and Klein, W. and Dominguez, R. (2010) A simple metric to quantify seismicity clustering. Nonlinear Processes in Geophysics, 17 (4). pp. 293-302. DOI: https://doi.org/10.5194/npg-17-293-2010
Full text not available from this repository.Abstract
The Thirulamai-Mountain (TM) metric was first developed to study ergodicity in fluids and glasses (Thiru- malai and Mountain, 1993) using the concept of effective ergodicity, where a large but finite time interval is consid- ered. Tiampo et al. (2007) employed the TM metric to earth- quake systems to search for effective ergodic periods, which are considered to be metastable equilibrium states that are disrupted by large events. The physical meaning of the TM metric for seismicity is addressed here in terms of the cluster- ing of earthquakes in both time and space for different sets of data. It is shown that the TM metric is highly dependent not only on spatial/temporal seismicity clustering, but on the past seismic activity of the region and the time intervals consid- ered as well, and that saturation occurs over time, resulting in a lower sensitivity to local clustering. These results confirm that the TM metric can be used to quantify seismicity clus- tering from both spatial and temporal perspectives, in which the disruption of effective ergodic periods are caused by the agglomeration of events.
[error in script]| Item Type: | Article |
|---|---|
| Subjects: | Methodology > Method and procesing > Collective properties of seismicity > Clustering and migration |
| Project: | IS-EPOS project |
