| Year | Max mag. | Total hits |
|---|---|---|
| 2015 | 7.6 | 48 |
| 1961 | 7.3 | 1 |
| 1918 | 7.1 | 1 |
| 1942 | 7.1 | 1 |
| 1950 | 7 | 1 |
| 1925 | 7 | 1 |
| 1929 | 7 | 1 |
| 1984 | 7 | 34 |
| 1994 | 7 | 28 |
| 1996 | 6.9 | 60 |
| 2008 | 6.9 | 71 |
| 1915 | 6.9 | 1 |
| 1963 | 6.9 | 1 |
| 1979 | 6.8 | 30 |
| 1975 | 6.7 | 18 |
| 1935 | 6.7 | 1 |
| 1922 | 6.7 | 1 |
| 1951 | 6.7 | 1 |
| 2017 | 6.7 | 29 |
| 2013 | 6.6 | 60 |
| 2005 | 6.6 | 61 |
| 1947 | 6.6 | 1 |
| 1981 | 6.6 | 33 |
| 1958 | 6.5 | 1 |
| 2007 | 6.5 | 60 |
| 2016 | 6.4 | 23 |
| 1972 | 6.4 | 2 |
| 1985 | 6.4 | 39 |
| 1989 | 6.4 | 35 |
| 1978 | 6.3 | 22 |
| 1973 | 6.3 | 37 |
| 2004 | 6.2 | 55 |
| 1998 | 6.2 | 42 |
| 2011 | 6.1 | 67 |
| 1968 | 6.1 | 2 |
| 1983 | 6.1 | 35 |
| 1977 | 6 | 23 |
| 1990 | 6 | 38 |
| 1993 | 6 | 29 |
| 2006 | 6 | 79 |
| 2003 | 6 | 47 |
| 2002 | 5.9 | 39 |
| 1988 | 5.9 | 43 |
| 2014 | 5.9 | 65 |
| 1980 | 5.9 | 24 |
| 1982 | 5.9 | 25 |
| 1986 | 5.8 | 40 |
| 1987 | 5.8 | 27 |
| 1976 | 5.8 | 22 |
| 2010 | 5.8 | 53 |
| 2000 | 5.8 | 44 |
| 1995 | 5.7 | 30 |
| 1999 | 5.7 | 48 |
| 2012 | 5.7 | 79 |
| 1991 | 5.7 | 27 |
| 1992 | 5.6 | 26 |
| 2009 | 5.6 | 59 |
| 1997 | 5.6 | 57 |
| 2001 | 5.5 | 39 |
| 2018 | 5.5 | 13 |
| 1974 | 5.5 | 23 |
| 1969 | 5.5 | 1 |
| 1970 | 5.5 | 1 |
| 1964 | 5.5 | 2 |