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Seismotectonic maps in the vicinity of the lower Wabash Valley,Illinois, Indiana, and Kentucky - Digital Spatial Database:Damaging Earthquakes


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2013-05-16 14:07:48


This cover consists of location and size information for historicaland recent earthquakes that caused Modified Mercalli Intensity(MMI) VI (6) or higher in the map area. There were 26 earthquakesthat caused that level of damage. The most reknown are thefour earthquakes in the 1811- 1812 sequence; two on Dec 16,1811, and one each on Jan 23, 1812, and Feb 7, 1812. Theircalculated Moment Magnitudes were 8.1, 7.2, 7.8, and 8.0,respectively. The most recent damaging earthquake was on June 10,1987 near Olney, Illinois. It had a Moment Magnitude of 5.2.


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

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15.66 KB application/fgdc+xml


The data was generated to help in understanding the seismotectonic hazardsin the vicinity of the lower Wabash Valley. This data complements similardata collected in the vicinity of New Madrid, MO (US Geological SurveyOpen-File Report 95-0574, available via ftp on

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