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Seismotectonic maps in the vicinity of the lower Wabash Valley,Illinois, Indiana, and Kentucky - Digital Spatial Database:Reported Modified Mercalli Intensity values


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2013-05-16 14:07:49


This cover contains locations with intensity values associatedwith felt reports from damaging earthquakes in the lower WabashValley occurring from 1811 through 1987. Margaret Hopper collatedthese data from historical data gathered from previousresearchers, personal letters, newspaper accounts, officialcorrespondence, and from mailed responses to queries on damageeffects from modern earthquakes. She examined all reports andassigned a Modified Mercali Intensity (MMI) value to each report.The values for intensity reported in these data are consistentwith the MMI scale used for describing damage from earthquakes.For historical earthquakes, these values are gathered in the 4 -10 range. In the central U.S., historical earthquakes have causeddamage [...]


Point of Contact :
Susan Rhea
Process Contact :
Susan Rhea
Distributor :
Susan Rhea
Metadata Contact :
Peter N Schweitzer
Originator :
Rhea, Susan

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The data was generated to help in understanding the seismotectonichazards in the vicinity of the lower Wabash Valley. This datacomplements similar data collected in the vicinity of New Madrid, MO(US Geological Survey Open-File Report 95-0574, available via ftp at<> )

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