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Seismicity map of the State of Illinois

Miscellaneous Field Studies Map 1143

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Abstract

The earthquake data shown on this map and listed in table 1 are a list of earthquakes that were originally used in preparing the Seismic Risk Studies in the United States (Algermissen, 1969) which have been recompiled and updated through 1977. The data have been reexamined and intensities assigned where none had been assigned before, on the basis of available data. Other intensity values were updated from new and additional data sources that were not available at the time of original compilation. Some epicenters were relocated on the basis of new information. The data shown in table 1 are estimates of the most accurate epicenter, magnitude, and intensity of teach earthquake, on the basis of historical and current information. Some of the aftershocks from large earthquakes are listed but are incomplete in many instances, especially for the ones that occurred before seismic instruments were in universal usage. 

Study Area

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Seismicity map of the State of Illinois
Series title:
Miscellaneous Field Studies Map
Series number:
1143
Year Published:
1979
Language:
English
Publisher:
U.S. Geological Survey, Department of the Interior
Publisher location:
Denver, CO
Description:
36.44 x 29.91 in
Country:
United States
State:
Illinois
Scale:
1
Online Only (Y/N):
N
Additional Online Files (Y/N):
N