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Map EG-2VERSION 2.0Revised 6/2014EARTHQUAKE EPICENTERS IN OHIO AND ADJACENT AREAS

GIS Cartography by Donovan M. Powers and Dean R. MartinDatabase Administator: Joseph G. Wells

STATE OF OHIODEPARTMENT OF NATURAL RESOURCES

DIVISION OF GEOLOGICAL SURVEYThomas J. Serenko, Chief by

Michael C. Hansen

This map depicts the approximate locations of earthquakes that were felt in Ohio or near the state border thathad instrumental magnitudes of 2.0 or greater. For purposes of graphic display, some events are not plottedprecisely at their listed coordinates (see catalog at right), especially in areas of multiple events.Noninstrumental earthquake locations and magnitudes have been calculated from historical accounts,including newspaper articles, scientific publications, published and unpublished government reports andrecords, and a variety of other sources. Because of the paucity of original reports for some earthquakes, theselocations and magnitudes may be very imprecise; for some early events, locational errors may be tens ofkilometers. Two eighteenth-century events, in 1776 and 1779, are not plotted on the map because they areknown only from single felt reports recorded by Moravian missionaries in Coshocton County; theseearthquakes may have had epicenters beyond Ohio borders. This map includes most of the small-to-moderate(2.0 magnitude or greater) earthquakes that were beyond the state border but were, or may have been, felt inOhio.

Instrumental recording of earthquakes in Ohio began about 1900 at St. Ignatius College (now John CarrollUniversity) in Cleveland. In 1927, Xavier University in Cincinnati established a seismic station that operateduntil the late 1960s. Bowling Green State University operated a seismic station during the 1970s through themid-1980s. The University of Toledo established a seismic station in the early 1980s. Despite this longhistory of instrumental recording in Ohio, there were never sufficient numbers of stations to precisely locatesmall earthquakes occurring within the state. Therefore, instrumental locations of small earthquakes in Ohioduring this period probably have no greater precision than events located on the basis of felt reports. From1977 to 1992, the University of Michigan operated a nine-station seismic network in the Anna area ofwestern Ohio and precisely located a number of events in this region. In 1986, John Carroll Universityestablished a multistation seismic network in northeastern Ohio and located a number of small earthquakes inthis area; this network ceased operation in 1992.

From 1992 until establishment of the Ohio Seismic Network in 1999, Ohio lacked in-state capability to locateearthquakes. During this period, some small events were detected and instrumentally located by out-of-statenetworks, including the University of Kentucky and the Geological Survey of Canada. However, someinstrumental locations are imprecise because of seismic-station distance and distribution that precludeoptimal triangulation. Seismologists express this epicentral uncertainty by calculating the error ellipse for anevent. Some poorly recorded events may have error ellipses with axes of tens of kilometers (km), whereasprecisely located events may have error ellipses of less than one km. The uncertainties of locations ofinstrumental and noninstrumental earthquakes is well known to seismologists, geologists, and others whowork with earthquake data; however, such information is noted in this report so that individuals andorganizations are aware that the placement on a map of a symbol depicting an earthquake location is agraphic representation of an approximate epicenter based upon available data. Therefore, site-specificdecisions should be based on the quality of the original data for a specific earthquake.

The complete database of Ohio and border-region earthquakes is available online athttps://geosurvey.ohiodnr.gov/earthquakes-ohioseis/ohioseis-home. The database includes a listing ofsome larger earthquakes that were felt or caused damage in Ohio but are beyond the border region as well asa list of doubtful or uncertain events that were reported as earthquakes but were probably of nonseismicorigin. Although derived from previous compilations by academic researchers and governmental institutions,the database has depended heavily on the report and catalog by Seeber and Armbruster (1991), with additionsby John G. Armbruster. Many older events are poorly known and require additional research of newspaperaccounts for complete documentation. Historical research occasionally reveals earthquakes that have not beennoted on previous lists. The ODNR Division of Geological Survey welcomes such new information.

OHIO EARTHQUAKE CATALOG

KEY TO CATALOG HEADINGS

MAPPING CONVENTIONS

FAULTS & STRUCTURAL FEATURES

I thank John G. Armbruster of Lamont-Doherty Earth Observatory for his interest in historic earthquakes inOhio and adjacent areas and for generously sharing these data with me through the years. Research on historicalearthquakes in northeastern Ohio by Weston Geophysical Corporation (1979), compiled as part of the impactstatement on the Perry Nuclear Power Plant, was of considerable help in compilation of the Ohio catalog.

ACKNOWLEDGMENTS

REFERENCES & DATA SOURCES

OHIO SEISMIC NETWORK STATIONS

CATALOG OF BORDER REGION EARTHQUAKES

Map No. Structural Feature

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�+=� 863?:*5� ,+C34� �4-<+,94:+*� 814)<1)4+0� /-+1)4-8� .-/:*-.� 975-3=31-*1:+0�+*.�8-:8,:<�4-/0-<1:3*�.+1+��3.:/:-.�/43,��+4+*382:�'�"!#(�

0 25 50 miles

0 50 kilometers

SCALE 1:500,000

Projection is Ohio state plane coordinate system, south zoneNorth American Datum 1983

Base map derived from Ohio Department of Transportation andOhio Environmental Protection Agency datasets

10 0 10 20 30 Miles

10 0 10 20 30 Kilometers

MODIFIED MERCALLI INTENSITY SCALE1

Recommended bibliographic citation:

Hansen, M.C., 2014, Earthquake epicenters in Ohio and adjacent areas (ver. 2.0): Columbus, OhioDepartment of Natural Resources, Division of Geological Survey Map EG-2, scale 1:500,000.

This product of the Ohio Department of Natural Resources (ODNR), Division of Geological Survey is intended to providegeneral information only and should not be used for any other purpose. It is not intended for resale or to replace site-specific investigations. These data were complied by the ODNR Division of Geological Survey, which reserves thepublication rights to this material. If these data are used in the compilation of other data sets or maps for distribution orpublication, this source must be referenced.

A page-size (8-1/2" x 11") version of this product may be downloaded for free online at:http://geosurvey.ohiodnr.gov/portals/geosurvey/PDFs/OhioSeis/epicentr.pdf

The information contained herein may be updated or edited in the future. Future releases of this material, if altered, willdisplay a revision date. Users should check to ensure they have the latest version and reference the appropriate revisiondate if it is being used in other works.

Neither the Ohio Department of Natural Resources, nor any agency thereof, nor any of their employees, contractors, orsubcontractors, make any warranty, expressed or implied, nor assume any legal liability or responsibility for the accuracy,completeness, or usefulness of this product. Any use thereof for a purpose other than that for which said information orproduct was intended shall be solely at the risk of the user.

www.OhioGeology.com

YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FA COUNTY SOURCE1804 5 5 0 0 0.00 39.100 -84.200 - 2.9 2 III - CLER OSN1834 11 20 18 30 0.00 39.600 -84.300 - 3.5 2 IV - MONT OSN1836 7 9 2 15 0.00 41.500 -81.700 - 3.1 3 IV - CUYA NCE1843 6 19 23 0 0.00 40.100 -83.800 - 3.5 3 IV 1.1 CHAM OSN1848 4 6 0 0 0.00 39.650 -82.530 - 3.7 2 IV 24.3 FAIR NCE1850 10 1 10 25 0.00 41.420 -81.550 - 3.2 3 IV - CUYA NCE1854 1 11 1 0 0.00 39.400 -83.700 - 3.5 3 IV - CLIN CERI1858 4 10 11 30 0.00 41.700 -81.300 - 3.3 3 IV - LAKE NCE1859 9 0 0 0 0.00 39.100 -84.200 - 2.5 2 F - CLER OSN1864 0 0 0 0 0.00 39.100 -84.200 - 2.5 2 F - CLER OSN1868 2 7 1 0 0.00 41.500 -81.600 - 3.0 2 F - CUYA OSN1870 1 16 16 15 0.00 39.710 -82.600 - 2.9 3 II - FAIR NCE1873 1 4 23 40 0.00 40.200 -83.000 - 3.8 3 IV - DELA NCE1873 4 23 4 14 0.00 39.700 -84.200 - 3.0 3 IV - MONT NCE1875 6 18 13 43 0.00 40.200 -84.000 - 4.7 2 VII 120.6 SHEL NCE1876 6 0 0 0 0.00 40.400 -84.200 - 3.4 3 V - SHEL NCE1877 1 23 21 0 0.00 38.800 -83.500 - 3.4 2 III 2.4 ADAM NCE1881 8 30 5 0 0.00 39.200 -83.700 - 2.9 3 III - HIGH NCE1882 2 9 20 0 0.00 40.400 -84.200 - 3.1 2 V 0.25 SHEL NCE1883 1 5 10 30 0.00 41.350 -82.100 - 3.0 2 F - LORA OSN1884 9 19 19 14 0.00 40.700 -84.100 - 4.8 2 VI 373 ALLE USGS1884 12 23 23 0 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE1885 1 18 10 30 0.00 41.150 -81.550 - 3.8 2 IV 10.9 SUMM NCE1886 5 3 21 30 0.00 39.360 -82.240 - 3.8 2 V 24.3 ATHE NCE/OSN1886 9 11 9 0 0.00 40.970 -81.700 - 3.1 2 IV - WAYN NCE1888 2 9 20 0 0.00 41.490 -81.690 - 3.3 3 III - CUYA NCE1888 2 11 2 0 0.00 41.000 -81.500 - 3.4 2 V - SUMM NCE/OSN1889 9 0 0 0 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE1892 4 15 5 25 0.00 40.550 -84.570 - 3.8 3 IV - MERC NCE1896 3 15 7 0 0.00 40.300 -84.200 - 3.1 3 IV - SHEL NCE1898 10 29 6 0 0.00 41.490 -81.690 - 2.9 3 II - CUYA NCE1899 9 14 3 0 0.00 41.170 -82.120 - 3.3 3 III - LORA NCE1899 11 12 14 0 0.00 39.300 -83.000 - 3.1 3 IV - ROSS NCE1901 5 17 7 0 0.00 38.730 -82.990 - 4.3 2 VI 66.2 SCIO NCE1906 4 20 17 30 0.00 41.500 -81.700 - 2.9 3 III - CUYA NCE1925 3 27 4 6 0.00 39.800 -83.900 - 3.4 3 V - GREE NCE1925 4 4 0 0 0.00 39.100 -84.500 - 2.5 3 II - HAMI NCE1925 10 0 0 0 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE1926 10 28 8 42 0.00 41.700 -83.600 - 3.4 3 III - LUCA NCE1926 10 28 11 0 0.00 41.700 -83.600 - 3.1 3 IV - LUCA NCE1926 11 5 14 53 0.00 39.100 -82.100 - 3.6 2 VII 0.9 MEIG NCE1927 2 17 5 30 0.00 40.700 -82.500 - 3.1 3 IV - RICH NCE1927 2 17 6 0 0.00 40.700 -82.500 - 2.5 3 II - RICH NCE1928 10 27 0 0 0.00 40.400 -84.100 - 3.0 2 III 0.25 SHEL NCE1929 3 8 9 6 0.00 40.400 -84.200 - 3.7 2 V 13.4 SHEL NCE1929 6 10 0 0 0.00 41.500 -81.700 - 2.9 3 III - CUYA NCE1930 6 26 21 45 0.00 40.500 -84.000 - 3.2 2 IV 2 AUGL NCE1930 6 27 7 23 0.00 40.500 -84.000 - 3.1 3 IV - AUGL NCE1930 7 11 0 15 0.00 40.600 -83.200 - 3.1 3 IV - MARI NCE1930 9 29 21 15 0.00 40.300 -84.200 - 2.9 3 III - SHEL NCE1930 9 30 20 40 0.00 40.300 -84.300 - 4.2 2 VII 0.1 SHEL NCE1931 3 21 15 48 0.00 40.400 -84.200 - 3.0 2 III 0.3 SHEL NCE1931 4 1 0 15 0.00 40.400 -84.000 - 2.9 3 III - SHEL NCE1931 9 20 23 4 54.00 40.430 -84.270 - 4.7 2 VII 120.6 SHEL NCE1931 10 9 14 30 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE1933 2 23 3 20 0.00 40.400 -84.200 - 3.3 2 IV 4.9 SHEL NCE1936 1 31 19 30 0.00 41.200 -83.200 - 3.1 3 IV - SENE NCE1936 1 31 20 0 0.00 41.200 -83.200 - 2.5 3 II - SENE NCE1936 10 8 16 30 0.00 39.300 -84.400 - 3.3 2 III 1.8 HAMI NCE1936 12 26 1 15 0.00 39.100 -84.500 - 2.9 3 III - HAMI NCE1936 12 26 2 5 0.00 39.100 -84.500 - 2.9 3 III - HAMI NCE1937 3 2 14 47 33.30 40.490 -84.270 - 4.9 2 VII 268.3 SHEL NCE1937 3 3 9 50 0.00 40.700 -84.000 - 3.2 2 V 0.5 ALLE NCE1937 3 3 9 55 0.00 40.700 -84.000 - 2.9 3 III - ALLE NCE1937 3 9 5 44 35.50 40.470 -84.280 - 5.4 2 VIII 489 SHEL NCE/USGS1937 4 23 17 15 0.00 40.700 -84.000 - 3.1 2 III 0.7 ALLE NCE1937 4 27 17 0 0.00 40.700 -84.000 - 3.1 2 III 0.7 ALLE NCE1937 5 2 17 5 0.00 40.700 -84.000 - 3.1 3 IV - ALLE NCE1937 10 17 4 25 0.00 39.100 -84.500 - 2.9 2 III 0.15 HAMI NCE1939 3 18 6 0 0.00 40.400 -84.000 - 2.5 3 II - SHEL NCE1939 3 18 14 3 0.00 40.400 -84.000 - 3.3 2 IV 1.3 SHEL NCE1939 6 18 3 20 0.00 40.300 -84.000 - 3.1 2 IV 1 SHEL NCE1939 7 9 12 50 0.00 40.300 -84.000 - 2.5 3 II - SHEL NCE1940 6 16 4 30 0.00 40.900 -82.300 - 3.1 3 IV - ASHL NCE1940 7 28 9 30 0.00 40.900 -82.300 - 2.9 3 III - ASHL NCE1940 8 15 10 35 0.00 40.900 -82.300 - 2.9 3 III - ASHL NCE1940 8 20 3 30 0.00 40.900 -82.300 - 2.9 3 III - ASHL NCE1943 3 9 3 25 24.90 41.630 -81.310 - 4.4 2 V 220 LAKE NCE1944 11 13 11 52 0.00 40.400 -84.400 - 4.1 2 III 44 SHEL NCE1948 1 18 0 0 0.00 41.700 -83.600 - 2.9 3 III - LUCA NCE1950 4 20 0 0 0.00 39.800 -84.200 - 3.1 3 IV - MONT NCE1951 12 3 7 2 0.00 41.600 -81.400 - 2.9 2 IV 0.3 LAKE NCE1952 6 20 9 38 8.60 39.640 -82.020 - 3.9 2 VI 13.4 PERR NCE1953 5 7 23 32 0.00 39.700 -82.100 - 2.7 2 IV 0.03 PERR NCE1953 6 12 0 0 0.00 41.700 -83.600 - 3.5 2 IV 1 LUCA NCE1955 5 26 18 9 0.00 41.290 -81.570 - 3.3 2 V 1 CUYA NCE1955 6 29 1 16 33.00 41.390 -81.410 - 2.7 2 IV 1.1 CUYA NCE1956 1 27 11 3 27.00 40.500 -84.000 - 3.7 2 V 9.9 SHEL NCE1956 1 27 12 3 0.00 40.400 -84.200 - 3.7 2 V 9.9 SHEL NCE1957 7 23 13 3 0.00 38.700 -83.800 - 2.9 3 III - BROW NCE1961 2 22 9 45 3.00 41.200 -83.300 - 3.7 2 V 13.4 SENE NCE1967 4 8 5 40 30.50 39.650 -82.530 - 3.7 2 V 9.9 FAIR NCE1968 7 26 15 2 53.70 40.430 -84.180 - 3.0 1 III - SHEL OSN1974 9 29 2 26 19.10 41.210 -83.490 - 3.0 1 III - WOOD NCE1975 2 3 10 31 0.00 41.300 -83.200 - 3.3 2 IV 3 SAND NCE1975 2 16 23 21 34.40 38.880 -82.350 - 3.0 1 IV 6 GALL NCE1977 6 17 15 39 46.90 40.570 -84.670 - 3.3 1 VI 0.6 MERC ASN/NCE1980 10 4 11 46 58.00 39.800 -83.750 - 2.0 1 NF - CLAR ASN1983 1 22 7 46 58.00 41.850 -81.190 - 2.7 1 NF - LAKE NCE1983 7 5 2 58 52.90 40.430 -84.100 - 2.1 1 NF - SHEL ASN1984 1 14 20 14 31.00 41.670 -83.450 - 2.6 1 V - LUCA ASN/NCE1986 1 31 16 46 42.30 41.650 -81.160 5 5.0 1 VI 322 LAKE USGS1986 2 7 18 36 22.30 41.650 -81.160 - 2.5 1 F - LAKE USGS1986 7 12 8 19 39.50 40.550 -84.390 10 4.5 1 VI 90 MERC ASN1987 7 13 5 49 19.41 41.903 -80.758 2 3.8 1 IV - ASHT JCU1987 7 13 5 58 52.31 41.870 -80.740 - 2.2 1 - - ASHT JCU1987 7 13 7 52 12.88 41.898 -80.757 - 3.0 1 IV - ASHT JCU1987 7 13 13 5 23.60 41.899 -80.768 - 2.9 1 F - ASHT JCU1987 7 13 18 25 11.98 41.880 -80.750 - 2.8 1 F - ASHT JCU1987 7 13 19 0 8.50 41.899 -80.768 - 2.3 1 - - ASHT JCU1987 7 13 19 39 19.44 41.899 -80.768 - 2.1 1 - - ASHT JCU1987 7 13 20 53 5.46 41.899 -80.768 - 2.2 1 - - ASHT JCU1987 7 13 23 49 14.50 41.902 -80.750 - 2.4 1 - - ASHT JCU1987 7 14 7 47 27.26 41.902 -80.750 - 2.4 1 - - ASHT JCU1987 7 14 14 51 11.67 41.902 -80.750 - 2.8 1 F - ASHT JCU1987 7 16 4 49 40.66 41.895 -80.751 - 2.7 1 F - ASHT JCU1987 7 16 6 2 25.54 41.895 -80.751 - 2.4 1 - - ASHT JCU1987 8 13 7 52 13.00 41.931 -80.710 5 3.3 1 - - ASHT GSC1988 3 31 16 30 3.87 41.313 -81.046 - 2.8 1 - - PORT JCU1988 6 27 4 46 31.34 41.818 -81.229 - 2.7 1 - - LAKE JCU1988 10 22 16 46 29.60 40.450 -84.110 - 2.2 1 - - SHEL ASN1988 12 25 2 11 34.00 41.831 -81.030 5 2.5 1 - - LAKE GSC1988 12 28 23 28 24.00 41.636 -81.166 5 2.8 1 - - GEAU GSC1989 8 1 16 12 48.75 41.898 -80.758 - 2.8 1 F - ASHT JCU1989 8 1 16 50 30.74 41.893 -80.752 - 2.9 1 F - ASHT JCU1989 8 3 4 7 48.64 41.890 -80.740 - 2.2 1 NF - ASHT JCU1990 1 1 23 3 4.89 41.902 -80.799 - 2.2 1 NF - ASHT JCU/OSN1990 6 4 11 26 48.70 41.080 -83.510 - 2.3 1 F - HANC ASN1990 7 24 23 4 38.01 41.902 -80.879 2.6 2.3 1 NF - ASHT JCU/OSN1990 9 26 6 13 4.89 41.910 -80.760 - 2.3 1 NF - ASHT JCU/OSN1990 11 18 9 20 52.81 41.902 -80.790 - 2.3 1 NF - ASHT JCU/OSN1991 1 27 3 21 24.23 41.610 -81.594 9.7 3.5 1 V - CUYA JCU1991 3 12 8 50 48.76 41.327 -81.361 - 2.3 1 NF - PORT JCU1991 10 13 2 26 38.47 41.711 -81.054 - 2.0 1 - - LAKE JCU1992 3 15 6 13 56.66 41.817 -81.226 - 3.4 1 IV - LAKE JCU1992 3 15 14 49 40.02 41.800 -81.217 - 2.2 1 NF - LAKE JCU

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Seeber, Leonardo, and Armbruster, J.G., 1991, The NCEER-91 earthquake catalog: Improved intensity-based magnitudes and recurrence relations for U.S. earthquakes east of New Madrid: National Center for Earthquake Engineering Research Technical Report NCEER-91-0021, 98 p., accessed at http://folkworm.ceri.memphis.edu/catalogs/html/cat_nceer.html.

Stover, C.W., and Coffman, J.L., 1993, Seismicity of the United States, 1568-1989 (revised): Washington, D.C., U.S. Geological Survey Professional Paper 1527, 418 p.

USGS, 2013, Earthquake archive search & URL builder: U.S. Geological Survey Earthquake Hazards Program [Internet database], accessed at http://earthquake.usgs.gov/earthquakes/search/.

Weston Geophysical Corporation, 1979, Evaluation of local seismicity around the Perry Nuclear Power Plant site, Appendix D of Report to the Cleveland Electric Illuminating Co.: Weston Geophysical Corporation, 102 p.

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YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FA COUNTY SOURCE1992 3 26 3 43 15.27 41.870 -80.870 - 2.5 1 F - ASHT JCU/OSN1992 3 28 8 22 44.06 41.900 -80.750 - 2.9 1 F - ASHT JCU/OSN1992 3 31 1 54 52.11 41.913 -80.860 - 2.5 1 F - ASHT JCU/OSN1992 4 7 1 35 22.12 41.883 -80.850 - 2.0 1 - - ASHT JCU1992 7 4 0 0 0.00 41.180 -83.680 - 2.0 1 III - WOOD UTLO1992 7 14 0 0 0.00 41.180 -83.680 - 2.0 1 III - WOOD UTLO1992 10 4 23 30 0.00 41.400 -83.500 - 2.5 3 III - WOOD UTLO1993 10 10 0 0 0.00 41.650 -83.500 - 2.0 1 III - LUCA UTLO1993 10 16 6 30 5.32 41.820 -81.270 - 3.6 1 IV - LAKE GSC1993 11 9 22 2 0.00 41.400 -83.500 - 2.0 1 III - WOOD UTLO1994 4 4 15 14 44.00 40.400 -84.000 - 2.9 1 III - SHEL USGS1994 7 9 22 13 40.60 39.045 -83.294 - 2.5 1 III - PIKE UK1995 1 12 21 25 51.00 40.800 -82.680 - 3.3 1 - - RICH USGS1995 2 19 12 57 6.00 39.120 -83.470 - 3.6 1 V - HIGH USGS1995 2 23 9 32 11.99 41.870 -80.800 - 2.9 1 IV - ASHT GSC/OSN1995 4 9 11 37 29.01 41.870 -80.770 - 2.4 1 NF - ASHT GSC/OSN1995 5 14 20 21 8.60 38.710 -82.602 - 2.5 1 NF - LAWR UK1998 1 27 0 38 30.24 41.870 -81.110 - 3.0 1 NF - LAKE GSC1998 1 30 4 59 18.00 41.910 -81.110 - 2.4 1 NF - LAKE GSC1998 11 25 2 55 7.52 41.020 -82.543 - 3.2 1 III 0.7 HURO GSC1998 12 25 21 22 3.10 41.150 -81.460 - 2.8 1 NF - SUMM GSC1999 9 22 10 2 18.80 41.680 -81.450 - 2.8 1 III - LAKE GSC2000 6 7 6 19 18.00 42.010 -80.780 - 2.0 1 NF - ASHT GSC2000 6 7 6 55 8.42 41.880 -80.710 - 2.4 1 NF - ASHT GSC/OSN2000 8 7 2 2 30.16 41.010 -81.100 10 3.0 1 IV 0.5 PORT OSN2000 10 20 23 26 26.54 41.910 -80.770 - 2.5 1 NF - ASHT GSC/OSN2001 1 20 2 5 7.00 41.880 -80.780 - 2.6 1 III - ASHT OSN2001 1 26 3 3 20.63 41.870 -80.760 2.5 4.5 1 VI 35 ASHT OSN2001 1 26 3 11 30.00 41.870 -80.760 - 2.0 1 F - ASHT OSN2001 1 26 3 45 25.00 41.870 -80.760 - 2.2 1 - - ASHT OSN2001 1 26 5 11 5.00 41.870 -80.760 - 2.0 1 NF - ASHT OSN2001 1 26 5 36 58.00 41.870 -80.760 - 3.2 1 III - ASHT OSN2001 6 3 22 36 46.39 41.870 -80.760 2.5 3.2 1 III - ASHT OSN2001 6 5 8 27 15.00 41.880 -80.760 - 2.2 1 II - ASHT OSN2001 7 26 10 46 51.40 41.010 -82.550 - 2.7 1 III 0.4 HURO OSN2002 4 28 0 7 20.90 41.850 -81.370 5 2.7 1 F - LAKE OSN2002 5 6 22 26 51.53 38.860 -81.890 - 2.8 1 NF - MEIG USGS/OSN2002 8 17 8 26 31.89 41.790 -80.980 - 2.0 1 NF - ASHT OSN2003 2 10 5 34 43.07 41.950 -80.720 - 2.4 1 II - ASHT OSN/GSC2003 5 1 6 26 57.79 41.676 -81.110 - 2.0 1 NF - LAKE GSC/OSN2003 6 30 19 21 17.20 41.800 -81.200 4.6 3.5 1 IV 3.2 LAKE OSN/GSC2003 7 17 0 44 10.00 41.860 -80.760 - 2.5 1 III 0.3 ASHT OSN/USGS2003 7 22 15 54 1.20 41.872 -80.770 2.6 2.1 1 NF - ASHT LCSN2004 1 30 12 10 4.10 40.670 -84.920 - 2.5 1 III 0.4 MERC OSN2004 3 14 5 10 28.00 41.770 -81.240 5 2.4 1 III 0.25 LAKE OSN2004 6 30 4 3 14.58 41.780 -81.070 5 3.3 1 III 1 LAKE OSN2005 2 1 13 1 13.30 41.800 -81.100 5 2.5 1 F - LAKE OSN/GSC2005 2 23 6 12 9.66 41.820 -80.960 5 2.0 1 F - ASHT OSN/GSC2005 3 2 6 53 16.93 41.800 -80.980 5 2.2 1 NF - ASHT OSN/GSC2005 3 13 4 2 4.49 40.680 -84.600 5 2.2 1 F - MERC OSN/GSC2005 11 13 11 2 15.77 41.840 -81.210 6.4 2.2 1 F - LAKE OSN/LCSN2005 12 11 5 20 2.38 41.950 -80.840 9.9 2.0 1 F - ASHT OSN/LDEO2006 1 6 3 2 2.69 41.770 -81.450 5 2.6 1 F - LAKE OSN/GSC2006 1 13 15 32 17.55 41.800 -81.450 7 2.3 1 F - LAKE OSN/LCSN2006 2 10 13 30 42.00 41.750 -81.410 5 2.6 1 F - LAKE OSN/GSC2006 2 27 20 53 20.48 41.920 -80.830 5 2.0 1 NF - ASHT OSN/GSC2006 3 11 12 27 15.16 41.760 -81.390 5 3.0 1 F - LAKE OSN/GSC2006 3 27 17 24 30.00 40.804 -81.413 5 2.2 1 - - LAKE GSC2006 3 27 17 24 30.35 41.750 -81.410 5 2.1 1 NF - LAKE OSN/GSC2006 4 10 5 55 52.49 41.920 -80.820 10 2.0 1 NF - LAKE OSN/LCSN2006 5 12 1 51 11.07 40.740 -84.080 5 2.8 1 III - ALLE OSN2006 5 21 14 15 28.63 41.810 -81.430 5 2.2 1 NF - LAKE OSN/GSC2006 6 20 20 11 18.54 41.840 -81.230 4 3.8 1 F - LAKE OSN2006 6 20 20 57 22.94 41.810 -81.240 5 2.2 1 NF - LAKE OSN2006 6 22 10 9 45.48 41.850 -81.250 5 2.3 1 NF - LAKE GSC2006 6 28 13 18 28.38 41.690 -81.240 5 2.3 1 F - LAKE GSC2006 7 1 5 25 53.19 41.830 -81.250 5 2.1 1 NF - LAKE GSC2006 8 15 6 8 54.90 40.710 -84.110 5 2.5 1 F - ALLE OSN2006 9 14 14 50 52.11 41.790 -81.230 5 2.2 1 NF - LAKE OSN2007 1 22 6 17 10.20 41.830 -81.210 6 2.2 1 NF - LAKE OSN2007 3 12 23 18 16.41 41.280 -81.380 5 3.3 1 F 7.7 PORT OSN2007 4 12 22 3 20.74 41.710 -82.930 5 2.5 1 NF - OTTA OSN2007 4 24 1 9 50.18 41.750 -82.900 5 2.3 1 NF - OTTA OSN2007 8 27 23 26 44.07 41.720 -81.380 5 2.1 1 F - LAKE OSN2007 9 28 8 46 5.81 41.990 -80.600 5 2.7 1 F - ASHT OSN2007 10 16 17 5 1.55 41.760 -81.420 5 2.4 1 NF - LAKE OSN2007 10 17 20 4 9.74 41.750 -81.420 5 3.2 1 III - LAKE OSN2007 10 18 22 23 4.23 41.730 -82.220 5 2.7 1 NF - LORA GSC2008 1 9 1 34 46.70 41.720 -81.430 5 3.1 1 F - LAKE OSN2008 8 14 18 32 16.00 41.850 -81.010 5 2.3 1 F - LAKE OSN2008 9 18 1 4 16.57 41.780 -81.430 5 2.8 1 F 7.2 LAKE OSN2008 9 20 19 16 43.19 41.740 -81.420 5 2.3 1 NF - LAKE OSN2008 9 30 1 6 38.58 40.410 -84.310 5 2.8 1 IV 6.75 SHEL OSN2009 2 14 13 16 27.16 41.840 -81.000 5 2.6 1 NF - ASHT OSN2009 2 23 23 32 27.26 41.750 -81.440 - 2.2 1 NF - LAKE GSC2009 4 24 13 42 46.03 38.810 -82.270 5 3.3 1 IV - GALL NCE2009 10 21 17 59 46.85 41.800 -81.340 5 2.4 1 NF - LAKE OSN/GSC2010 2 4 17 44 21.30 41.620 -81.460 5 2.1 1 II - LAKE OSN2010 2 26 22 13 13.27 41.160 -83.410 5 2.4 1 III - SENE OSN2010 4 25 2 0 36.94 41.970 -81.040 5 2.9 1 III - LAKE OSN2010 5 14 2 27 2.15 41.390 -83.300 5 2.6 1 NF - SAND OSN/GSC2010 5 17 21 29 5.65 41.240 -81.510 5 2.5 1 NF - SUMM OSN2010 6 7 16 22 32.16 41.770 -81.100 - 2.3 1 F - LAKE OSN2010 6 10 16 32 22.31 41.760 -81.430 5 2.5 1 F - LAKE OSN2010 10 24 8 12 44.51 39.430 -81.360 5 2.8 1 III - WASH OSN2011 3 17 10 42 20.22 41.110 -80.680 5 2.1 1 F - MAHO OSN2011 3 17 10 53 9.51 41.110 -80.680 5 2.6 1 III 0.1 MAHO OSN2011 4 26 7 9 46.59 40.860 -83.540 5 2.4 1 III - HANC OSN2011 6 5 15 35 20.20 41.030 -82.080 5 3.0 1 II - MEDI OSN2011 6 15 4 37 57.86 41.810 -81.790 5 2.0 1 NF - CUYA GSC/OSN2011 8 13 15 41 0.77 42.250 -81.020 5 2.1 1 NF - LAKE OSN/GSC2011 8 22 8 0 31.50 41.120 -80.730 5 2.2 1 NF - MAHO OSN/GSC2011 8 25 19 44 20.99 41.100 -80.730 5 2.4 1 NF - MAHO OSN/GSC2011 8 31 9 35 12.41 39.400 -81.270 5 3.0 1 III - WASH OSN2011 8 31 17 36 2.67 39.510 -81.470 5 3.1 1 III - WASH OSN2011 9 2 21 3 26.20 41.120 -80.690 5 2.2 1 II - MAHO OSN2011 9 4 13 21 59.29 39.422 -81.205 5 2.6 1 III - WASH OSN/USGS2011 9 26 1 6 9.82 41.110 -80.690 5 2.6 1 F - MAHO OSN2011 9 30 0 52 37.58 41.110 -80.690 5 2.7 1 IV 1 MAHO OSN2011 10 20 22 41 9.54 41.110 -80.680 5 2.3 1 F - MAHO OSN2011 11 25 6 47 0.00 41.100 -80.690 5 2.2 1 NF - MAHO OSN/USGS2011 12 24 6 24 57.38 41.119 -80.694 3.55 2.7 1 III - MAHO OSN/USGS2011 12 31 20 5 0.01 41.118 -80.693 3.68 4.0 1 V - MAHO OSN/USGS2012 1 13 22 29 33.45 41.110 -80.690 5 2.1 1 NF - MAHO OSN2012 5 29 11 52 54.17 39.380 -81.350 2 2.1 1 F - WASH OSN2012 9 7 21 56 35.10 41.864 -83.076 5.1 2.5 1 - - LUCA USGS2012 9 18 21 5 19.58 39.384 -81.352 4 2.1 1 NF - WASH OSN2012 12 1 7 32 2.00 39.041 -82.143 - 2.1 1 NF - MEIG OSN2013 3 8 22 32 20.72 41.705 -81.468 5 2.7 1 F - LAKE OSN2013 3 17 22 49 26.07 41.658 -80.885 5 2.2 1 NF - ASHT OSN2013 3 27 9 10 50.08 38.643 -82.178 5 2.5 1 NF - GALL OSN/USGS2013 7 1 7 48 43.31 41.793 -81.292 5 3.2 1 F - LAKE OSN2013 10 6 19 37 2.93 41.850 -81.008 5 2.4 1 F - LAKE OSN2013 10 21 11 14 15.49 39.668 -83.073 20 2.0 1 NF - PICK OSN2013 11 17 1 35 50.00 42.217 -81.191 5 2.5 1 - - LAKE GSC2013 11 20 17 59 39.82 39.445 -82.205 8 3.5 1 III 36.8 ATHE OSN2014 1 20 6 50 18.67 41.408 -81.906 13 2.1 1 NF - CUYA OSN2014 1 28 8 15 54.48 41.887 -81.701 5 2.0 1 NF - CUYA OSN2014 3 5 3 5 18.00 41.033 -80.543 5 2.3 1 NF - MAHO OSN2014 3 10 6 26 45.00 41.010 -80.543 5 3.0 1 F - MAHO OSN2014 3 10 6 42 44.00 41.009 -80.555 5 2.4 1 F - MAHO OSN2014 3 10 15 3 47.00 41.101 -80.530 5 2.2 1 NF - MAHO OSN2014 3 10 15 44 6.00 41.009 -80.532 5 2.6 1 F - MAHO OSN2014 3 11 7 1 0.00 41.003 -80.534 5 2.1 1 NF - MAHO OSN2014 4 8 16 2 28.30 41.811 -81.004 5 2.2 1 F - LAKE OSN

YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FASTATE /

PROVINCE SOURCE1817 9 5 0 0 38.500 -84.500 - 3.1 3 IV - KY NCE1824 7 15 16 20 39.700 -80.500 - 4.1 2 IV 169 WV NCE1839 9 5 0 0 38.600 -83.800 - 3.1 3 IV - KY NCE1857 2 27 20 30 42.220 -81.050 - 3.9 2 V 29.7 ONT NCE1869 2 20 0 0 38.100 -84.500 - 3.4 3 V - KY NCE1876 2 20 8 0 41.910 -83.480 - 3.3 3 III - MI NCE1877 8 17 16 50 42.300 -83.300 - 3.1 2 V 0.5 MI NCE1883 5 23 4 30 38.400 -82.600 - 3.1 3 IV - KY NCE1890 12 15 13 0 41.410 -80.390 - 2.9 3 II - PA NCE1894 11 24 4 0 39.270 -81.560 - 3.8 3 IV - WV NCE1895 8 19 15 0 38.530 -83.750 - 3.2 2 III 0.5 KY NCE1897 6 17 0 0 38.050 -84.500 - 2.9 3 II - KY NCE1902 3 5 8 0 38.140 -83.760 - 3.8 3 IV - KY NCE1909 10 22 0 0 38.900 -84.500 - 2.5 3 II - KY NCE1933 5 28 15 10 38.600 -83.700 - 3.4 2 V 1.8 KY NCE1936 8 26 8 55 41.400 -80.400 - 2.9 3 III - PA NCE1947 8 10 2 46 41.3 41.930 -85.000 - 4.5 2 VI 180 MI NCE1970 8 11 6 14 25.5 38.230 -82.050 10 3.2 2 IV 1.6 WV NCE1974 6 5 0 16 40.2 38.480 -84.750 10 3.2 1 VI - KY NCE1974 10 20 15 13 55.6 39.060 -81.610 4 3.8 2 V 20 WV NCE1976 2 2 21 14 2.3 41.880 -83.730 5 3.4 1 III 1.6 MI NCE1979 11 9 21 29 59.8 38.490 -82.810 - 3.6 1 V 9 KY NCE1980 7 27 18 52 21.4 38.190 -83.890 16 5.2 1 VII 667 KY USGS1980 7 31 9 27 2.3 38.190 -83.930 19 2.5 1 IV - KY NCE1980 8 20 9 34 53.4 41.990 -82.990 - 3.2 1 - 18 ONT NCE1980 8 25 11 41 38.3 38.190 -83.790 13 2.5 1 IV 0.7 KY NCE1980 12 30 3 7 8.1 38.200 -83.910 11 3.1 2 III 0.7 KY NCE1983 8 17 14 3 15 38.470 -82.770 10 3.5 1 V - KY NCE1985 4 14 11 39 51.3 41.400 -80.370 - 2.0 1 - - PA ASN1985 4 14 11 39 54 41.583 -80.402 18 3.2 0 - - PA GSC1985 7 11 10 13 20 42.360 -80.750 - 2.6 1 - - ONT GSC1988 9 7 2 28 9.5 38.143 -83.878 10 4.6 1 VI 103 KY USGS1989 7 15 0 3 2.6 38.606 -83.569 - 3.1 1 V - KY USGS1990 4 17 10 27 34.7 40.460 -84.852 - 3.0 1 IV - IN USGS1990 9 8 0 3 57.4 38.061 -83.731 - 3.3 1 V - KY USGS1991 6 28 18 34 51.9 38.276 -81.668 - 3.2 1 - - WV USGS1998 3 14 7 24 55 42.130 -82.480 - 2.6 1 - - ONT GSC1998 9 25 19 52 52.07 41.495 -80.388 - 5.2 1 VI - PA USGS1998 10 9 8 41 50 41.677 -80.375 18 2.1 0 - - PA GSC

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YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FASTATE /

PROVINCE SOURCE1998 11 5 3 16 53 42.270 -81.580 - 2.3 1 NF - ONT GSC1998 11 7 2 17 12 41.566 -80.315 5 2.3 0 - - PA GSC1999 1 24 22 46 19 42.260 -82.330 - 2.4 1 F - ONT GSC1999 1 27 1 38 7 42.330 -82.300 - 2.6 1 F - ONT GSC1999 1 27 1 57 19 42.310 -82.310 - 2.5 1 F - ONT GSC1999 6 3 4 2 32 42.280 -82.230 - 2.3 1 - - ONT GSC1999 10 30 8 2 48 42.060 -80.400 - 2.5 1 - - PA GSC2001 10 23 1 33 18.8 42.340 -84.760 - 2.9 1 III - MI OSN/GSC2004 7 15 4 30 44 42.029 -82.365 18 2.2 0 - - ONT GSC2004 9 23 19 10 11 38.317 -83.530 11 2.8 3 - - KY USGS2005 2 10 4 39 15 41.679 -80.319 5 2.0 0 - - PA GSC2005 3 1 20 44 11 42.136 -82.573 5 2.4 0 - - ONT GSC2005 3 2 2 50 4 42.234 -81.160 5 2.0 0 - - ONT GSC2005 4 20 21 36 9 41.616 -80.409 5 2.2 0 - - PA GSC2005 8 13 23 43 28 42.068 -80.500 5 2.4 0 - - PA GSC2005 9 5 20 2 35.79 38.190 -83.930 12.8 2.5 0 - - KY USGS2006 5 7 4 32 49 42.105 -82.450 5 2.2 0 - - ONT GSC2006 10 11 3 51 22 42.093 -83.144 5 2.3 0 - - ONT GSC2007 1 17 14 50 48 42.330 -81.817 5 2.1 0 - - ONT GSC2008 7 21 1 41 30 41.473 -80.367 5 2.3 0 - - PA GSC2009 3 7 9 54 10 42.099 -82.477 18 2.2 0 - - ONT GSC2009 3 20 17 11 11 42.019 -83.117 5 2.1 0 - - ONT GSC2009 3 26 15 51 18 42.053 -83.174 5 2.1 0 - - ONT GSC2010 3 8 10 10 38.56 42.163 -83.070 18 2.5 0 - - ONT GSC/USGS2010 9 13 15 8 45 38.165 -82.022 6 2.3 1 NF - WV USGS2010 12 10 21 26 32.79 41.514 -80.322 5 2.2 0 NF - PA GSC/USGS2011 2 23 14 21 32.42 42.157 -82.430 5 3.0 0 - - ONT GSC/USGS2011 2 24 10 13 51 42.138 -82.373 5 2.7 0 - - ONT GSC2012 3 16 15 5 53.57 38.234 -81.748 5 2.6 0 - - WV USGS2013 2 17 4 12 55 42.018 -82.224 5 2.5 0 NF - ONT GSC2013 7 18 21 44 38.83 38.712 -83.957 8 2.4 1 NF - KY UK/OSN2013 7 23 15 0 40.42 38.703 -83.940 5 2.7 1 F - KY UK/OSN2013 10 11 2 25 40.8 38.506 -82.798 5.7 2.2 0 - - KY USGS2013 11 2 13 20 27.8 38.571 -83.775 7.8 2.1 0 - - KY USGS2013 11 22 19 42 11.5 38.109 -83.519 12.3 2.1 0 - - KY USGS2013 12 23 10 58 50 38.145 -83.865 10.3 2.3 0 - - KY USGS2014 2 9 22 34 4.98 41.482 -80.364 5 2.2 0 NF - PA USGS2014 6 6 22 15 40 38.644 -81.586 29 2.6 1 NF - WV USGS

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