USGS Open-File Report 02-184: Modified Mercalli Intensities (MMI) for Large Earthquakes near New Madrid, Missouri, in 1811–1812 and near Charleston, South Carolina, in 1886

Modified Mercalli Intensities (MMI) for Large Earthquakes near New Madrid, Missouri, in 1811–1812 and near Charleston, South Carolina, in 1886

By W.H. Bakun, A.C. Johnston, and M.G. Hopper

Abstract

Large historical earthquakes occurred in the eastern United States on December 16, 1811 near New Madrid, MO, on January 23, 1812 near New Madrid, MO, on February 7, 1812 near New Madrid, MO, and on September 1, 1886 near Charleston, SC. Modified Mercalli Intensity (MMI) assignments for these earthquakes were used by Bakun et al. (submitted) to estimate the location and moment magnitude M of these earthquakes from MMI observations. The MMI assignments used by Bakun et al. (submitted) are listed in this report.

First posted May 3, 2002

Report PDF (112 kB)

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Suggested citation:

Bakun, W. H., Johnston, A. C., Hopper, M. G., 2002, Modified Mercalli Intensities (MMI) for Large Earthquakes near New Madrid, Missouri, in 1811–1812 and near Charleston, South Carolina, in 1886: U.S. Geological Survey Open-File Report 02-184, 32 pp., https://pubs.usgs.gov/of/2002/0184/.