== 1. Sealed: M >= 7.0, 1973-2025 == mean 13.75/yr over 53 years; change per decade +6.6% (95 % CI +1.6% to +11.8%); dispersion phi 1.00 VERDICT: survived M7 counts by year: 1973:9 1974:11 1975:13 1976:14 1977:11 1978:12 1979:8 1980:6 1981:10 1982:8 1983:14 1984:14 1985:15 1986:11 1987:13 1988:11 1989:8 1990:18 1991:17 1992:13 1993:12 1994:13 1995:20 1996:15 1997:16 1998:12 1999:18 2000:15 2001:15 2002:13 2003:15 2004:16 2005:11 2006:11 2007:18 2008:12 2009:17 2010:24 2011:20 2012:16 2013:19 2014:12 2015:19 2016:16 2017:7 2018:17 2019:10 2020:9 2021:19 2022:11 2023:19 2024:10 2025:16 == 2. Described: the same model at every threshold == minmag mean/yr 1973-82 2016-25 ratio per decade 95 % CI phi 4.5 5420.9 3341.5 7435.9 2.23 +21.7% +18.7% to +24.8% 105.9 5.0 1657.8 1512.7 1750.2 1.16 +4.3% +1.2% to +7.4% 48.2 6.0 138.2 93.1 133.2 1.43 +6.2% +2.5% to +10.0% 5.5 7.0 13.8 10.2 13.4 1.31 +6.6% +1.6% to +11.8% 1.0 == 3. Described: completeness by window (maximum curvature) == 1973-1982: Mc 2.5, 7,470 events/yr in 2.5-7.4, peak bin 4,952 1983-1992: Mc 2.5, 11,971 events/yr in 2.5-7.4, peak bin 9,207 1993-2002: Mc 2.5, 18,650 events/yr in 2.5-7.4, peak bin 10,714 2003-2012: Mc 2.5, 26,179 events/yr in 2.5-7.4, peak bin 15,125 2013-2022: Mc 2.5, 27,815 events/yr in 2.5-7.4, peak bin 21,376 2023-2025: Mc 4.4, 26,979 events/yr in 2.5-7.4, peak bin 7,099 NOT A RESULT: 5 of 6 windows put Mc at the 2.5 floor; the method needs a catalog of one network's coverage.