Power Law and Entropy Analysis of Catastrophic Phenomena

Figure 8

Total Tsallis and Rényi normalized entropies (𝑞=0.5) and Ubriaco’s (𝑞=2), as a function of the events in years {1981, 1982, 1986–1992, 1994–1996, 1999, 2000, 2002, 2003, 2008, 2009}.