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

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/97-681/dameqk.faq.html
Description This cover consists of location and size information for historical and recent earthquakes that caused Modified Mercalli Intensity (MMI) VI (6) or higher in the map area. There were 26 earthquakes that caused that level of damage. The most reknown are the
Originators Rhea, Susan
Publication U.S. Geological Survey Open-File Report 97-0681

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States or counties

DAMEQK.PAT

location and size parameters of damaging earthquakes in the lower Wabash Valley

Label Definition
LAT latitude north, location of earthquake
LONG longitude west, location of earthquake
YEAR year of earthquake occurrence
MONTH month of earthquake occurrence
DAY day of earthquake occurrence
HR hr of earthquake occurrence
MIN min of earthquake occurrence
MAG magnitude of earthquake
SYMBOL symbol used to portray earthquake on map
SMALLSYM symbol used to portray earthquake on map
BSYMBOL symbol used to portray earthquake on map B