CONNECTICUT EARTHQUAKES AND SEISMIC WINDOWS


Date E.S.T. Mg/Int Epicenter Lat Lon FM Per NM Sync Sq Mi
1791-May-18 08:00 /VIII E. Haddam 41.5 72.5 0 0   2 hrs.! 35000
1792-Aug-28 22:00   E. Haddam 41.5 72.5 26 26   23 hrs.  
1793-Jan-11 08:00   E. Haddam 41.5 72.5   -1 -1 8 hrs.!  
1794-Mar-06 14:00   E. Haddam 41.5 72.5   5 5 5 hrs.!  
1805-Aug-11 19:00   E. Haddam 41.5 72.5   16 17 27 hrs.  
1821-May-06     New London 41.4 72.7   4 5 25 hrs.  
1827-Aug-23   /V New London 41.4 72.7   16 2 na  
1837-Apr-12   /VI Hartford 41.7 72.7   7 5 62 hrs.  
1840-Aug-09 15:30 /V New Haven 41.5 72.9 4 19 19 2 hrs.! 7500
1845-Oct-26 10:26 /VI Stamford 41.2 73.3   -5 -3 60 hrs.  
1858-Jun-30 22:45 /V New Haven 41.8 73   11 10 22 hrs. 1000
1872-Jul-11 05:25 /V Westchester Co. NY 40.9 73.8 20 21 5 21 hrs. 100
1875-Jul-28 04:10 /V Winsted 41.8 73.2   26 25 38 hrs. 2000
1884-Aug-10 14:07 5.5/VII New York City 40.6 74 4 16 18 48 hrs. 70000
1908-Feb-05 03:20   Housatonic Valley       3 3 8 hrs.!  
1925-Nov-14 08:02 /VI E. Haddam 41.5 73.5   -2 -1 62 hrs. 850
1929-Aug-12 06:23 5.2/VIII Attica NY 42.9 78.3   7 6 30 hrs. 100000
1951-Nov-03 20:26 /V Windsor 41.2 74.1   4 5 33 hrs. 5500
1953-Mar-27 03:50 /V Stamford 41.1 73.5   12 12 13 hrs.!  
1964-Nov-17 12:06 /V Westchester Co. NY 41.2 73.7 -1 -2   30 hrs.  
1967-Nov-22 17:10 /V Westchester Co. NY 41.1 73.7 5 20 20 4 hrs.! 400
1968-Nov-03 03:32 /V Chester/Lyme/Essex 41 72 -2 -17 -17 2 hrs.! 1000
1968-Aug-03 21:01 2.2/III Moodus 41.5 72.5 -5 12 10 62 hrs.  
1981-Oct-21 11:47 3.7/V Conn./Long Island 41.1 72.6 9 8   35 hrs.  
Bold type indicates a "Seismic Window" of increased, potential for earthquakes.
Underlined items for quakes within perigean spring tides with Sychroneity less than 36 hrs.
Mg = Magnitude
Int = Mercalli Intensity
Lat = North Latitude
Lon = West Longitude
e = Eclipse (et = Total Eclipse)
FM = Date of Full Moon in relation to Quake
Per = Perigee = Date of Perigee in relation to Quake
NM = Date of New Moon in relation to Quake
Sync = Synchroneity is time difference between Syzygy (new or full stage of the Moon) and Perigee (On same day, only 2 to 5 times per year)
Jim Berkland, Geologist, Aug 31, 1997
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