1 Erratum to: Earthq Sci DOI 10.1007/s11589-013-0034-z

The original version of this article contained an omission in the Acknowledgments section. The corrected version appears in this erratum.

Acknowledgments

The authors thank Earthquake Administration of Sichuan Province, China for providing data used in our study. This work was supported by Research Project in Earthquake Science (Nos. 201308018 and 201108002), Seismic Industry-Specific Program (No. 200708009) and National Natural Science Foundation of China (No. 40904012).