| Year | Max mag. | Total hits |
|---|---|---|
| 1906 | 6.8 | 1 |
| 1961 | 6.6 | 1 |
| 1987 | 6.1 | 6 |
| 2002 | 5.7 | 8 |
| 1993 | 5.5 | 16 |
| 2004 | 5.5 | 4 |
| 2005 | 5.5 | 161 |
| 1989 | 5.5 | 7 |
| 1985 | 5.4 | 3 |
| 1975 | 5.2 | 2 |
| 2017 | 5.2 | 1 |
| 2018 | 5.2 | 1 |
| 2010 | 5.1 | 4 |
| 1983 | 5.1 | 2 |
| 1984 | 5 | 2 |
| 1979 | 5 | 3 |
| 1990 | 5 | 1 |
| 1977 | 5 | 2 |
| 2011 | 5 | 5 |
| 2007 | 5 | 8 |
| 1995 | 5 | 1 |
| 1996 | 5 | 5 |
| 2009 | 5 | 2 |
| 1994 | 4.9 | 2 |
| 2008 | 4.9 | 5 |
| 2006 | 4.9 | 8 |
| 1973 | 4.9 | 1 |
| 1988 | 4.9 | 2 |
| 1978 | 4.8 | 2 |
| 1976 | 4.7 | 1 |
| 1999 | 4.7 | 2 |
| 2003 | 4.6 | 2 |
| 2014 | 4.6 | 3 |
| 2000 | 4.5 | 5 |
| 1974 | 4.5 | 1 |
| 1991 | 4.4 | 1 |
| 1998 | 4.1 | 1 |
| 2001 | 4 | 1 |