1. Grünthal G (ed) (1998). European Macroseismic Scale 1998 (EMS-98). European Seismological Commission, sub commission on Engineering Seismology, working Group Macroseismic Scales. Conseil de l’Europe, Cahiers du Centre Européen de Géodynamique et de Séismologie, Luxembourg, 15, pp 1–99
2. Housner G (1952) Intensity of ground motion during strong earthquakes. California Institute of Technology, Pasedena, pp 1–60
3. Huo JR (1989). Study on the attenuation laws of strong earthquake ground motion near the source. PhD Dissertation, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, pp 1–299 (in Chinese with English abstract)
4. Institute of Engineering Mechanics (IEM) and Institute of Geophysics (IGP), China Earthquake Administration (CEA) (2008). The Chinese seismic intensity scale (GB/T 17742-2008). China Standard Press, Beijing, pp 2–4 (in Chinese)
5. Liu J, Yi GX, Zhang ZW, Guan ZJ, Ruan X, Long F and Du F (2013) Introduction to the Lushan, Sichuan M7.0 earthquake on 20 April 2013. Chin J Geophys. 56(4): 1404–1407 (in Chinese with English abstract)