Electronic Supplement to
High-Precision Analysis of an Aftershock Sequence Using Matched-Filter Detection: The 4 May 2015 ML 6 Wanaka Earthquake, Southern Alps, New Zealand

by Emily Warren-Smith, Calum J. Chamberlain, Simon Lamb, and John Townend

This electronic supplement contains the catalog of detected aftershocks (Table S1) for the 4 May 2015 Wanaka earthquake, using the matched-filter method as described in the main article.

Table

Table S1 [Plain text comma-separated values; ~303 KB]. Catalog of detected aftershocks. The column headers are as follows: Event number: this is the chronological ordering of events, with event 1 being the mainshock; SEC SINCE 00:00:00 on 4 May 2015: the time in seconds since midnight at the start of 4 May 2015 in UTC time series; NLL Lat: latitude in decimal degrees of the event location as constrained by NonLinLoc (Lomax et al., 2010); NLL Lon: longitude in decimal degrees of the event location as constrained by NonLinLoc; NLL depth: depth in kilometers beneath sea level of the event location as constrained by NonLinLoc; hypoDD Lat: latitude in decimal degrees of the event location as constrained by hypoDD relative relocation. No Value indicates that the event was not able to be relocated and that the NLL location should be used; hypoDD Lon: longitude in decimal degrees of the event location as constrained by hypoDD relative relocation. No Value indicates that the event was not able to be relocated and that the NLL location should be used; hypoDD depth: depth in kilometers below sea level of the event location as constrained by hypoDD relative relocation. No Value indicates that the event was not able to be relocated and that the NLL location should be used; Best correlating template number: the number of the best correlating template (0–100) assigned at declustering; Template strike/dip/rake: strike, dip, and rake in degrees of one plane of the focal mechanism for the best correlating template event, calculated using the methods of Walsh et al. (2009).

References

Lomax, A., J. Virieux, P. Volant, and C. Berge-Thierry (2000). Probabilistic earthquake location in 3D and layered models, in Advances in Seismic Event Location, Springer, Dordrecht, The Netherlands, 101–134.

Walsh, D., R. Arnold, and J. Townend (2009). A Bayesian approach to determining and parametrizing earthquake focal mechanisms, Geophys. J. Int. 176, no. 1, 235–255.

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