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NEIC National Earthquake Information Center

World Data Center A for Seismology

Geologic Hazards


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NUMBER OF EARTHQUAKES PER YEAR MAGNITUDE 7.0 OR GREATER
		1900 - 1997

	1900	13	1930	13	1960	22	1990	13
	1901	14	1931	26	1961	18	1991	10
	1902	 8	1932	13	1962	15	1992N	20
	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    21
	1907	27	1937	22	1967	16      1997    16
	1908	18	1938	26	1968	30
	1909	32	1939	21	1969	27
	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 = 1958 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

Updated: Wednesday, 14-Jan-98 14:28:08 MST

Maintained by: Madeleine Zirbes zirbes@usgs.gov
United States Geological Survey
National Earthquake Information Center


URL http://wwwneic.cr.usgs.gov/neis/eqlists/7up.html