Number of Quakes Over 7.0 Per Year
Posted by Don in Hollister on February 22, 2001 at 16:45:41:

Hi All. Not to long ago a statement was made that there was an increase in large quakes. If memory serves it had something to do with the year 2000 and the “End Times” or something like that. At any rate you can judge for yourselves as to the increase. Take Care…Don in creepy town.
Sure hope this post comes out right.

NUMBER OF EARTHQUAKES PER YEAR MAGNITUDE 7.0 OR GREATER
1900 - 1999

1900 13 1930 13 1960 22 1990 12
1901 14 1931 26 1961 18 1991 11
1902 8 1932 13 1962 15 1992N 23
1903 10 1933 14 1963 20 1993M 16
1904 16 1934 22 1964 15 1994 15
1905 26 1935 24 1965 22 1995E 25
1906 32 1936 21 1966 19 1996 22
1907 27 1937 22 1967 16 1997 20
1908 18 1938 26 1968 30 1998 16
1909 32 1939 21 1969 27 1999 23
1910 36 1940 23 1970 29
1911 24 1941 24 1971 23
1912 22 1942 27 1972 20
1913 23 1943* 41 1973 16
1914 22 1944 31 1974 21
1915 18 1945 27 1975 21
1916 25 1946 35 1976$ 25
1917 21 1947 26 1977 16
1918 21 1948 28 1978 18
1919 14 1949 36 1979 15
1920 8 1950 39 1980 18
1921 11 1951 21 1981 14
1922 14 1952 17 1982 10
1923 23 1953 22 1983 15
1924 18 1954 17 1984 8
1925 17 1955 19 1985 15
1926 19 1956 15 1986# 6
1927 20 1957 34 1987 11
1928 22 1958 10 1988 8
1929 19 1959 15 1989 7

Total 1900-1997 = 1960 events = 20 per year

* Most active year since 1900
# Least active year since 1900
$ Year with most people killed since 1900 (295,000 - 699,000;
dominated by the Tangshan quake with casualty estimate from
255,000 - 655,000)
N First full year of operation on NSN/digital recording system
M Year moment magnitude quotes were introduced
E Year energy magnitude quotes were introduced

Statistics were compiled from the Earthquake Data Base System of the
U.S. Geological Survey, National Earthquake Information Center, Golden CO