Source:  United States Geological Service	
year	number of quakes >7.0	
1900	13	
1901	14	
1902	8	
1903	10	
1904	16	
1905	26	
1906	32	
1907	27	
1908	18	
1909	32	
1910	36	
1911	24	
1912	22	
1913	23	
1914	22	
1915	18	
1916	25	
1917	21	
1918	21	
1919	14	
1920	8	
1921	11	
1922	14	
1923	23	
1924	18	
1925	17	
1926	19	
1927	20	
1928	22	
1929	19	
1930	13	
1931	26	
1932	13	
1933	14	
1934	22	
1935	24	
1936	21	
1937	22	
1938	26	
1939	21	
1940	23	
1941	24	
1942	27	
1943	41	
1944	31	
1945	27	
1946	35	
1947	26	
1948	28	
1949	36	
1950	29	
1951	21	
1952	17	
1953	22	
1954	17	
1955	19	
1956	15	
1957	34	
1958	10	
1959	15	
1960	22	
1961	18	
1962	15	
1963	20	
1964	15	
1965	22	
1966	19	
1967	16	
1968	30	
1969	27	
1970	29	
1971	23	
1972	20	
1973	16	
1974	21	
1975	21	
1976	25	
1977	16	
1978	18	
1979	15	
1980	18	
1981	14	
1982	10	
1983	15	
1984	8	
1985	15	
1986	6	
1987	11	
1988	8	
1989	7	
1990	13	
1991	10	
1992	23	
1993	16	
1994	15	
1995	25	
1996	22	
1997	20	
1998	16	
1999	11