March 7, 1950 Earthquake: Brazil

March 7, 1950, 08:03 UTC, 8 S, 71 W, magnitude 8.6 MS, intensity V. (reference #1208)

March 7, 1950, 08:03 UTC, 8 S, 71 W, magnitude 8.65 MS. (reference #1218)

March 7, 1950, 08:03 UTC, 8 S, 71 W, magnitude 8.65 MS. (reference #1221)

The magnitude of this earthquake is questionable since the earthquake is not listed in the following references:

Duda, Seweryn J., 1965, Secular seismic energy release in the circum-Pacific belt. Tectonophysics, vol. 2, no. 5, p. 409-452. (reference #88)

Gutenberg, B., and C.F. Richter, 1965, Seismicity of the earth and associated phenomena. Princeton University Press, 1954 (second edition); Hafner Publishing Company, New York and London (facsimile edition), 310 p. (reference #130)

U.S. Department of the Interior, Geological Survey and U.S. Department of Commerce, National Oceanic and Atmospheric Administration, 1928-1986, United States Earthquakes, Annual publication, published 1928-1986. Volumes for 1928-1965 issued by the U.S. Coast and Geodetic Survey; volumes for 1966-1969 issued by the National Earthquake Information Center; volume for 1970 issued by the National Geophysical Data Center; volumes for 1971-1972 issued by the National Geophysical And Solar-Terrestrial Data Center; volumes for 1973-1980 published jointly by the National Oceanic and Atmospheric Administration (NOAA) and the U.S. Geological Survey; volumes for 1981-1986 published by the U.S. Geological Survey. (reference #45)

Seismological Society of America, 1950, Seismological Notes, Bulletin of the Seismological Society of America, Vol. 40, No. 3, p. 243-252. (reference #8205)