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Seismicity Study of Wisconsin

by Ron Friedel
Geosciences - UW-Milwaukee
May 19, 1997

In doing research on earthquakes felt in Milwaukee and in Wisconsin I noticed some discrepancies in the various lists of earthquakes that have been published. (Keener's list, USGS list and map, WSGNHS listing, Dames & Moore (?) listing) In this paper I am attempting to compile a complete and accurate list from various sources but especially from articles in local newspapers. The main source of information is microfilms of two Milwaukee newspapers available in the UW-Milwaukee's library. The newspaper stories are accounts of felt effects of the earthquakes. The two newspapers are the Milwaukee Sentinel, first published in 1837 and the Milwaukee Journal, first published in the 1880's. Portions of the newspaper accounts of individual earthquakes are printed in this report and my comments on some of the events are in italics. Dates of some early earthquakes may not match those dates previously published for the same event. I found in this study that previously published dates of some events were actually the dates on which the article about the quake first appeared in the newspaper. This is a continuing study. Recent events are being added to the list as they occur. I also need to look at newspapers from other places in the state of Wisconsin. In particular, those from Platteville, Eau Claire, Superior, and Green Bay would give a better geographic coverage. I also need to look at some newspaper from a city in the center of State of Wisconsin. I have now found another source of local earthquake information. The Milwaukee Public Library has a newspaper index which was used to locate references to nearby earthquakes and earthquake like events. This is an index of all articles written in the Milwaukee Sentinel from its' founding in 1837 till 1890. I have found information on a number of events that were previously otherwise unreported. Similar newspaper indexes probably can be found in other libraries throughout the state. As a long-term project, I will visit some of these other libraries to find information on even more events. Therefore this list continues to be incomplete.

Published listings of local and regional earthquakes that may have been felt in Wisconsin.


  1. Wisconsin Utilities Project, Preliminary Safety Analysis Report, Koshkonong Nuclear Plant, 1975. Amendments 3 & 7.
  2. Earthquake History of the United States, Coffman & von Hake, US Dept of Commerce, NOAA, 1973.
  3. Newspaper clippings - reproduced in text following table.
  4. United States Earthquakes, 1928-1935, US Dept of Commerce, Coast & Geodetic Survey, 1930.
  5. United States Earthquakes, 1936-1940, US Dept of Commerce, Coast & Geodetic Survey, 1938.
  6. United States Earthquakes, 1941-1945, US Dept of Commerce, Coast & Geodetic Survey, 1947.
  7. List of Earthquakes in Wisconsin, M.G. Mudrey, Jr., Wis. Geological & Natural History Survey, 1984.
  8. Earthquake Occurrence History for the Milwaukee Region, MMSD Inline Storage Facility, 1980(?).
  9. Tecumsah's Revenge
  10. Applications of Intensity-Epicentral Distance to Earthquakes Affecting Indiana, Varma & Blakely.
  11. Seismicity of the United States, 1568-1989 (Revised)

Notes:

a. Cryoseism

b. Sonic boom

c. Explosion

d. Meteorite

e. Thunder storm

f. Ice quake

g. Mine collapse

h. Other - see text


Click Here to see detailed reference notes and eyewitness accounts


Earthquakes and Earthquake-like Events That May Have Been Felt in Wisconsin

   Date      Time    Place                     N.    W.    Felt Area  Maximum  Magnitude  Dist. to  Felt in    Source(Notes)  

             CST                              lat.  long.   sq. km.  Intensity            Wis.- Km   Wis.  

02/05/1663   16:30   St. Lawrence River, CAN  47.6   70.1   1,950,000   X                   1300      x         2

01/08/1795   03:00   Kaskaskia, IL            38.0   90.0      11,700                        500                1,2,8

08/20/1804   2010UTC Fort Dearborn, IL        42.0   87.8      78,000   VI        4.4Mfa      60      x         1,2,8,11

08/24/1804   2010UTC Chicago, IL                                        IV    

12/16/1811   0815UTC Northeast Arkansas       35.6   90.4   5,000,000   XI        7.2Mfa     770      x         1,2,8,9,11

12/16/1811   1415UTC Northeast Arkansas       35.6   90.4               X         7.0Mfa     770      x         9,11

01/23/1812   1500UTC New Madrid, MO           36.3   89.6   5,000,000   XI        7.1Mfa     690      x         1,2,8,9,11

02/07/1812   0945UTC New Madrid, MO           36.5   89.6   5,000,000   XII       7.4Mfa     670      x         1,2,8,9,11

07/05/1827   1130UTC New Harmony, IN          38.0   87.5     430,000   VI        4.8Mfa     500                11

08/07/1827   0430UTC New Albany, IN           38.0   88.0               V         4.8Mfa     500                2,8,10,11

08/07/1827   07UTC   New Albany, IN           38.0   88.0               V         4.7Mfa     500                2,10,11

06/09/1838   1445UTC Southern Illinois        38.5   89.0     500,000   VII       5.2Mfa     450                8,9,11

01/05/1843   0245UTC Northeast Arkansas       35.5   90.5   1,500,000   VII       6.0Mfa     780      ?         2,9,11

02/17/1843   05UTC   Northeast Arkansas       35.5   90.5     250,000   V         4.8Mfa     780                8,11

Jan ? 1844    ?      Mukwonago,WI *           42.8   88.3                                     -       x         3,(a?)

03/02/1847     am    Green Bay, WI *          44.5   88.0                                     -       x         3,(a?)

02/03/1850   10-11pm Two Rivers, WI *         44.1   87.6                                     -       x         3,(a?)

10/08/1857   1000UTC Southern Illinois *      38.7   89.2     200,000   VII       4.9Mfa     420                9,11

10/05/1859     ?     Little Chute, WI *       44.3   88.3                                     -       x         3,(a?)

--/--/1860           Central Minnesota        46.0   94.8               VI                   180                1,2,11

08/17/1865   1500UTC Memphis, Tennessee       36.0   89.5     250,000   VII       5.0Mfa     720                9,11

08/31/1866           Milwaukee, WI *          43.0   87.9               IV                    -       x         3,(e?)

04/24/1867   2022UTC Manhattan, KS *          39.2   96.3     500,000   VII       5.1Mfa     600      x         2,3,11

1865-1870            LeSueur, MN              44.4   93.8               IV                   110                1

10/20/1870   11:25   St. Lawrence River, CAN *47.4   70.5   1,000,000   VIII-IX             1270      x         2,3

02/06/1872   08:00   Wenona, MI               43.5   83.8       local   V                    320                1,2

04/17/1874           Wrightsville, WI *       44.4   90.8               IV                    -       x         3,(a?)

06/18/1875   1243UTC Western Ohio             40.2   84.0     100,000   VII       4.7Mfa     410                1,2,8,11

09/25/1876   0600UTC Wabash River Valley      38.5   87.8     150,000   VI        4.5Mfa     450                11

09/25/1876   0615UTC Wabash River Valley      38.5   87.8     150,000   VII       4.8Mfa     450                2,10,11

08/17/1877   10:50   Near Detroit, MI         42.3   83.3         200   IV-V                 370                1,2

11/15/1877   1745UTC Eastern Nebraska *       41.0   97.0     450,000   VII       5.1Mfa     550      x         2,3,11

02/09/1882   14:00   Anna, OH                 40.2   84.2       local   V                    400                1,2

09/27/1882   1020UTC Southern Illinois        39.0   89.5     100,000   VI        4.4Mfa     390                1,2,11

10/15/1882   00to05  Alton, IL                39.0   90.0      40,000   V                    390                1,2

02/04/1883   05:00   Kalamazoo, MI            42.3   85.6       8,000   VI                   180                1,8,(h)

09/19/1884   1914UTC Lima, OH                 40.7   84.1     373,000   VI        4.8Mfa     370      x         1,2,11

06/25/1886     pm    Eastern Wisconsin *                                                      -       x         3,(d)

09/01/1886   0251UTC Charleston, SC *         32.9   80.0   2,000,000   X         6.7Mfa    1270      x         1,2,3,8,11

02/06/1887   2215UTC Vincennes, IN *          38.7   87.5     170,000   VI        4.6Mfa     420      x         2,3,10,11

08/02/1887   1836UTC Southern Illinois        37.2   88.5     450,000   VI        4.9Mfa     590                11

12/01/1887     am    Lancaster, WI *          42.8   90.7                                     -       x         3,(a or g)

07/27/1891   0228UTC Evansville, IN           37.9   87.5      22,000   VI        4.1Mfa     510                2,10,11

09/27/1891   0455UTC Mt. Vernon, IL           38.25  88.5     560,000   VII       5.2Mfa     470                9,11

10/31/1895   1108UTC Charleston, MO *         37.0   89.4   2,037,000   VIII      5.9Mfa     610      x         1,2,3,8,9,11

03/15/1896           Anna, OH                 40.2   84.3       local   IV                   390                1

04/30/1899   0205UTC Near Vincennes, IN       38.5   87.4     179,000   VII       4.9Mfa     450                2,9,10,11

10/10/1899   7-8 pm  Kenosha, WI *            42.6   87.8               III                   -       x         3,7,(a?)

05/17/1901   0600UTC Near Portsmouth, OH      38.75  83.0      42,000   VI        4.2Mfa     580                1,2,11

01/24/1902   1048UTC Near St. Louis, MO       38.6   90.3     130,000   VI        4.5Mfa     430                11

02/09/1903   0021UTC Mississippi R. Valley    37.8   89.3     202,000   VII       4.9Mfa     520                11

11/04/1903   1818UTC Near Charleston, MO      36.5   89.5     168,000   VI        4.6Mfa     670                9,11

11/04/1903   1914UTC Near Charleston, MO      36.5   89.5     340,000   VII       5.1Mfa     670                11

03/13/1905   22:30   Menomonee, MI *          45.1   87.6       local   V                     -       x         1,3,7,8,(a?)

04/13/1905   10:30   Keokuk, IA               40.4   91.4       5,000   V                    240                1,2

07/27/1905   0020UTC Calumet, MI *            47.24  88.45     40,000   VII       4.5Mfa     140                1,2,3,11,(g?)

08/22/1905   0508UTC Southern Illinois        37.2   89.3     375,000   VI        4.8Mfa     590                9,11

04/18/1906   night   The Knobs, Iowa Co., WI* 42.3   90.0                                     -       x         3,(h)  

04/22/1906           Shorewood, WI *          43.1   87.9               III                  <10      x         3,7,(h)

04/24/1906           Milwaukee, WI *          43.0   87.9               III                  <10      x         3,7,(h)

04/26/1906           Quinnesec,MI *           45.8   88.0               VIII                 190      x         3,(g)

05/08/1906           Columbus, IN             39.2   85.9       local   IV                                      1

05/26/1906   1442UTC Houghton, MI *           47.1   88.64      2,000   VIII      4.2Mfa     280      x         1,2,3,8,11,(g)

01/10/1907           Marinette, WI            45.1   87.7               III                  140      x         3,7,(f)

11/28/1907           Kent, IL                 42.2   89.8       local   IV                                      1

01/22/1909   21:00   Houghton, MI *           47.1   88.6       local   V                    280      ?         1,2,3,(g?)

05/26/1909   1442UTC Aurora, IL *             41.6   88.1     430,000   VII       5.1Mfa      70      x         1,2,3,7,8,11

07/19/1909   0434UTC Havana, IL               40.2   90.0     121,000   VII       4.8Mfa                        1,2,8,9,11

08/16/1909   16:45   Southwestern Illinois    38.3   90.2                         5.7?       350                2,8

09/27/1909   0945UTC Wabash River Valley      39.8   87.2     377,000   VII       5.1Mfa                        1,2,8,9,11

10/23/1909   0710UTC Near Charleston, MO      37.0   89.5     125,000   V         4.5Mfa                        11

07/29/1911           Chicago, IL              41.7   87.6       local   IV                                      1

01/02/1912   1621UTC Northeastern Illinois *  41.5   88.5     150,000   VI        4.5Mfa     110      x         1,2,3,8,11

10/16/1913           Sterling, IL             41.7   89.7       local   IV                                      1

10/07/1914   15:00   Madison, WI              43.1   89.4               IV                   80       x         7,(a?)

05/31/1916   16:45   Madison, WI              43.1   89.3               II                   70       x         7

04/09/1917   2052UTC Southern Illinois *      38.1   90.2     408,000   VII       5.1Mfa     370      x         2,3,8,9,11

09/03/1917   2130UTC Staples, MN              46.3   94.5      48,000   VI        4.3Mfa                        1,2,11

02/22/1918           Lansing, MI              42.9   84.3               IV                   181                8

03/14/1921   1215UTC Near Terre Haute, IN     39.5   87.5      89,000   VI        4.4Mfa                        1,11

03/22/1922   2229UTC Southern Illinois        37.4   89.4     135,000   VII       4.8Mfa                        11

03/23/1922   0222UTC Southern Illinois        37.4   89.4     175,000   VI        4.6Mfa                        11

07/07/1922     am    Fond du Lac, WI *        43.8   88.5               V                    60       x         3,7

11/27/1922   0331UTC Near Eldorado, IL        37.8   88.5     130,000   VII       4.8Mfa                        9,11

11/09/1923   22:00   Tallula, IL              40.0   90.0         400   V                                       1,2

02/28/1925   20:19   St. Lawrence River, CAN* 47.6   70.1   2,000,000   VIII      7.0?       900      x         2,3,8

03/26/1925   22:06   Lebanon, OH              39.5   84.0               V                                       1,2

04/27/1925   0405UTC Wabash River Valley      38.2   87.8     325,000   VI        4.8Mfa                        11

11/05/1926   1653UTC Near Pomeroy, OH         39.1   82.1       1,000   VII       3.8Mfa                        1,11,(a?)

02/17/1927           Mansfield, OH            40.7   82.5               IV                                      1

05/07/1927   0828UTC Northeastern Arkansas    35.8   90.4     100,000   VI        4.8Mfa                        9,11

01/23/1928   03:19   Mt. Carroll, IL          42.0   90.0         400   IV                                      1,4,8

09/09/1928   15:00   Cleveland, OH            41.5   82.0       1,500   V                                       1,2,4

03/08/1929   04:06   Bellefontaine, OH        40.4   84.2       5,000   V                                       1,2,4

01/23/1930   21:45   Sault Ste. Marie, MI     46.4   84.3       local   IV(?)                                   1,4,(a?)

05/28/1930   11:31   Hannibal, MO             39.7   91.3       local   IV                                      1,4

06/26/1930   15:45   Anna, OH                 40.5   84.0       local   IV                                      1,4

08/08/1930   12:31   Hannibal, MO             39.6   91.4       local   IV                                      1,4

09/30/1930   2040UTC Near Anna, OH            40.3   84.3               VII       4.2Mfa                        1,2,4,11

01/05/1931   20:51   Elliston, IN             39.0   87.0         500   V                                       1,2,4

06/10/1931   02:30   Malinta, OH              41.6   84.0               V                                       1,4,(c)

08/09/1931   0619UTC Near Merriam, KS         39.1   94.7       1,000   VI        3.8Mfa                        1,4,11

09/20/1931   2305UTC Anna, OH                 40.429 84.270    90,000   VII       4.7Mfa                        1,2,4,11

10/18/1931   15:12   Madison, WI              43.1   89.4       local   III                  80       x         1,4,7,8

12/17/1931   0336UTC Charleston, Mississippi  33.8   90.1     175,000   VI        4.6Mfa                        9,11

12/06/1933   23:55   Stoughton, WI            42.9   89.2         460   IV                   70       x         1,4,7,8,(a?)

11/12/1934   1445UTC Near Rock Island, IL     41.5   90.5      13,000   VI        4.0Mfa                        1,2,4,11

01/05/1935   00:40   Davenport, IA            41.5   90.5       local   III                                     1,4

02/26/1935   08:15   Burlington, IA           40.8   91.1       local   III                                     1,4

10/11/1935   11:15   Negaunee, MI             46.5   87.6       local   II                                      1,4

10/30/1935   22:30   Negaunee, MI             46.5   87.6       local   II                                      1,4

11/01/1935   0604UTC Timiskaming, CAN *       46.87  79.05  2,590,000   VII       6.2Ms     500       x         1,2,3,4,8,11

03/02/1937   1448UTC Anna, OH *               40.488 84.273   280,000   VII       5.0Mfa    260       x         1,2,3,5,8,11

03/03/1937   03:50   Anna, OH                 40.5   84.0       local   V                                       1,2

03/09/1937   0545UTC Anna, OH *               40.470 84.280   390,000   VIII      5.4Mfa    260       x         1,2,3,5,8,11

02/12/1938   00:27   Near Porter, IN          41.6   87.2               V                                       1,5,8,10

11/07/1938   23:30   Dubuque, IA              42.5   90.7               II                   150      x         7,(a?)

11/08/1938   01:15   Dubuque, IA              42.5   90.7               II                   150      x         7,(a?)

11/08/1938   03:30   Dubuque, IA              42.5   90.7               II                   150      x         7,(a?)

06/17/1939   21:20   Anna, OH                 40.4   84.1       local   IV                                      1,5

11/23/1939   1515UTC Griggs, IL *             38.180 90.137   440,000   V         4.6Mfa     350      x         1,3,5,8,11

11/24/1939   13:45   Davenport, IA            41.5   90.5       local   III                                     1,5

06/15/1940   20:30   Nankin, OH               40.9   82.3               IV                                      1,5

03/01/1942   09:43   Kewanee, IL              41.2   89.8               IV                                      1,6,8

02/09/1943   17:21   Thunder Mt., WI          45.3   88.2               III                  150      x         1,6,7,8,(a?)

09/05/1944   0439UTC Massena, NY *            44.958 74.723 1,095,000   VIII      5.8Mn      660      x         1,3,6,11

11/16/1944   13:35   Escanaba, MI             45.8   87.1               II                                      1,6,8,(c?)

05/18/1945   09:26   Escanaba, MI             45.8   87.1               II                                      1,6,8

05/06/1947   15:25   Milwaukee, WI *          43.0   87.9       3,000   V                     10      x         1,2,3,7,8

08/09/1947   0247UTC Southern Michigan *      41.928 85.004   158,000   VI        4.6Mn      170      x         1,2,8,11

01/15/1948   11:40   Lake Mendota, WI         43.1   89.7                IV        3.8?        90     x         7,(f)

02/15/1950           Alexandria, MN           45.7   94.8               V-VI                                    1

01/07/1952           Bloomington, IL          40.5   88.5               IV                                      1

06/20/1952   0938UTC Near Zanesville, OH      39.640 82.023    13,000   VI                                      1,2

06/11/1953           Toledo, OH               41.6   83.6       local   IV        4.0Mfa                        1,11

01/05/1955   14:30   Calumet, MI *            47.2   88.5               IV                   290      ?         1,2,3,(a or g)

01/05/1955   23:30   Portage Lake area, MI *  47.1   88.5               V                    280      ?         1,2,3,(a or g)

01/27/1956   06:03   Anna, OH                 40.2   84.2               V                                       1,2

03/13/1956           Lewiston, IL             40.5   90.2               IV                                      1

07/18/1956   15:15   Oostburg, WI *           43.6   87.8               IV                   40       x         1,3,7,8

07/18/1956   16:28   Oostburg, WI *           43.6   87.8               IV                   40       x         1,3,7

10/13/1956   08:30   So. Milwaukee, WI *      42.9   87.9               IV                   20       x         1,3,7,8,(b?)

01/08/1957   10:00   Beaver Dam, WI           43.5   88.6               IV                   50       x         7,(a?)

02/22/1961   03:45   Findlay, OH              41.2   83.4       local   V                                       1,2

12/25/1961   06:20   Kansas-Missouri Border   39.1   94.6      11,000   V                                       1,2

02/02/1962   0643UTC New Madrid, MO           36.374 89.511    90,000   VI        4.3Mn                         9,11

03/03/1963   1730UTC Near Poplar Bluff, MO    36.642 90.050   208,000   VI        4.8Mn                         9,11

10/21/1965   0205UTC Eastern Missouri         37.479 90.944   420,000   VI        4.8Mn      400      ?         2,9,11

02/02/1967           Lansing, MI              42.7   84.6               IV                                      1,8

04/07/1967   23:41   Columbus, OH             39.6   82.5       4,000   V         4.2                           1,2

10/31/1967           Port Huron, MI           43.0   82.5      10,000   IV                                      1

11/09/1968   1702UTC Southern Illinois *      37.911 88.373 1,473,000   VII       5.5Mn      350      x         1,2,3,8,9,11

01/01/1969   2336UTC Central Arkansas         34.991 92.688    62,000   VI        4.4Mn                         9,11

11/17/1970   0214UTC Northeast Arkansas       35.856 89.947    92,000   VI        4.3Mn                         9,11

09/15/1972   0522UTC Northern Illinois *      41.645 89.369   230,000   VI (V-WI) 4.5Mn      130      x         1,3,8,9,11

04/03/1974   2305UTC Southeast Illinois *     38.549 88.072   400,000   VI        4.7Mn      310      x         3,11

11/25/1974                                    40.3   87.4                         2.4?       192                8

01/28/1975   11:13   Whitewater, WI *         42.8   88.7                                    40       x         3,(c)

03/01/1975   1313UTC Elmhurst, IL

May-June 75          Wilton, WI

03/25/1976   0041UTC Northeast Arkansas       35.585 90.478   280,000   VI        4.9Mn                         9,11

11/18/1977   1520UTC Elmhurst, IL                                                 2.9                 Recorded UWM

04/28/1978   17:06:27Rice Lake, WI                        Instrumental

09/16/1978   2200UTC Oostburg, WI

02/28/1979   12:05   Bill Cross Rapids, WI    45.2   89.8 Instrumental  <1.0 MbLg                               7

07/27/1980   1852UTC Northeast Kentucky *     38.193 83.891   667,000   VII       5.0Mn      400      x         3,11

01/09/1981   1515UTC Madison, WI              43.1   89.4               II                   80       x         7,(a?)

03/13/1981   morning Madison, WI              43.1   89.4               II                   70       x         7,(a?)

06/12/1981   1630UTC Oxford, WI               43.9   89.7               IV-V                 110      x         3,7

06/25/1981   1358UTC Howard's Grove, WI

01/21/1982   0034UTC North-Central Arkansas   35.18  92.21     31,000   VI        4.7Mn                         9,11

09/09/1985   2207UTC Northeastern Illinois    41.848 88.014             V         3.3Mn                         12

01/31/1986   1647UTC Northeast Ohio *         41.650 81.162   322,000   VI        4.9Mn      360      x         3,11

07/12/1986   0820UTC Western Ohio             40.537 84.371    90,000   VI        4.6Mn                         11

10/28/1986           Madison, WI

02/12/1987   1912UTC Milwaukee, WI *          42.9   87.8               IV                   10       x         3,(b?)

02/12/1987   1916UTC Milwaukee, WI *          43.2   87.3               IV                   30       x         3,(b?)

06/10/1987   2349UTC Near Olney,Illinois *    38.713 87.954   433,000   VI        5.2Mn      300      x         3,9,11

12/04/1987   1715UTC Milwaukee, WI *                                                                            3,(b?)

01/14/1988   1724UTC Upper Michigan           46.6   89.6               III       3.6mbLg    260      x         (g)

02/25/1988   1600UT  Dane Co., WI                                                                               3,(a?)

02/25/1988   2026UT  Milwaukee Co., WI                                                                          3,(a?)

11/25/1988   2346UTC Saguenay, Quebec, Can. * 48.1   71.2   2,432,847*  VII       5.9mb      880      x

03/30/1990   1644UT  Franklin, WI             42.9   88.0       local   III                  10       x         3,(a?)

06/18/1990   2237UT  W. Kenosha Co., WI *     42.6   88.2         160   III                  40       x         3,(c?)

02/16/1993   1335UT  Green Bay, WI *                                    IV                            x         3,(a?)

04/06/1993   1720UT  Oostburg, WI

04/06/1993   2335UT  Oostburg, WI

01/31/1994   0539UTC New Berlin, WI

04/19/1996   0853UT  Local  -  Recorded at UW-Milwaukee - Analog and digital

05/03/1996   2143UT  Local  -  Recorded at UW-Milwaukee - Analog only

05/17/1996   1915UT  Local  -  Recorded at UW-Milwaukee - Analog and digital

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