South Carolina Earthquakes and Syzygy


South Carolina Earthquakes and Seismic Windows
Quake Date Mg/Int Epicenter Lat Lon FM Per NM Sync
1817 Jan 08 04:00 5.0/V Charleston 32.9 80.0 5> 23 20 3 days
1853 May 20 ??:?? _._/VI Columbia 34.0 80.0 -2 -2
-3 hrs.!
1857 Dec 19 04:04 _._/V Charleston 32.9 80.0
18 3 -6 hrs.!
1886 Aug 28 03:45 _._/VI Charleston 32.9 80.0
-1 -1 -4 hrs.!
1886 Aug 31 21:51 7.5/X Charleston 32.9 80.0
2 2 -4 hrs.!
1886 Sep 05 23:06 _._/? Charleston 32.0 80.0
7 7 -4 hrs.!
1886 Sep 21 05:15 _._/VI Charleston 32.9 80.0 8 23
26 hrs.
1886 Sep 27 14:02 x.x/VI Charleston 32.9 80.0
1 0 26 hrs.
1886 Oct 22 17:20 _._/VII Charleston 32.9 80.0
-3 -5 48 hrs.
1886 Nov 05 14:45 _._/VII Charleston 32.9 80.0
12 10 48 hrs.
1887 Mar 17 09:09 _._/VI Charleston 32.9 80.0 8 8
4 hrs.!
1903 Jan 23 20:14 _._/VI GA/SC border 32.1 81.1
-1 -1 -1 hrs.!
1907 Apr 19 03:30 _._/V Charleston 32.9 80.0
-6 7 49 hrs.
1911 Apr 20 ??:?? _._/V Spartanburg 35.2 82.7
-9 -8 32 hrs.
1912 Jun 12 05:30 _._/VII Summerville 33.0 80.2
-3 -2 33 hrs.
1913 Jan 01 03:28 4.8/VII Greenville 34.7 81.7 9 8
41 hrs.
1914 Sep 22 02:04 _._/? Summerville 35.0 82.6 2 2
9 hrs.!
1924 Oct 20 03:30 _._/? Pickens Co. 35.0 82.6 7 -7
40 hrs.
1933 Dec 19 09:12 _._/VI Summerville 33.0 80.0 2 2
9 hrs.!
1945 Jul 26 05:32 4.4/VI Lake Murray 33.8 81.4 1 13 16 61 hrs.
1952 Nov 19 ??:?? _._/V Charleston 32.9 80.0 17 19 2 64 hrs.
1958 Oct 20 01:16 _._/V Anderson 34.5 82.8
8 8e 6 hrs.!
1959 Aug 03 01:08 4.4/VI Summerville 33.0 80.1 14 16 -1 52 hrs.
1959 Oct 26 21:07 3.9/VI Chesterfield 34.5 80.3 10 -6 -5 22 hrs.
1960 Mar 12 07:48 4.0/V Off Coast SC 33.0 79.0 0e -3
81 hrs.
1960 Jul 23 22:37 _._/V Charleston 33.0 80.0 15 15 0 -9 hrs.!
1964 Apr 20 14:05 3.5/V Columbia 33.8 81.0
6 8 41 hrs.
1967 Oct 23 04:04 3.8/V Summerville 33.4 80.7 5 20 20 19 hrs.
1971 May 19 07:54 3.4/V Orangeburg 33.3 80.6 9 7 -5 54 hrs.
1971 Jul 13 06:42 3.7/VI Newry 34.8 83.0 5 1
4 days
1972 Feb 03 18:11 4.5/V Swansea 32.5 80.4 5 7
62 hrs.
1974 Nov 22 00:26 4.7/VI Carleston 32.9 80.1
10 7 78 hrs.
1977 Jan 18 13:29 3.0/VI Summerville 33.1 80.2
1 1 57 hrs.
1977 Dec 15 13:17 3.0/V Summerville 32.9 80.2
5 5 5 hrs.!
1979 Aug 25 20:32 3.7/VI Tamasee 34.9 83.0 17 17 2 16 hrs.
1982 Jan 27 20:53 3.4/IV Allendale 33.0 81.4 17 18 2e 31 hrs.
1982 Feb 28 22:33 3.0/IV Summerville 32.9 80.1
-3 6 88 hrs.
1982 Jul 16 09:16 3.1/III Greenville 34.3 81.6
-3 -4e -22 hrs.
1982 Sep 02 16:53 3.0/III Pickens Co. 35.0 82.9 1 17 15 48 hrs.
1983 Nov 06 01:02 3.1/IV Charleston 32.9 80.1
3 1 66 hrs.
1985 Jun 08 19:39 3.0/III Barnwell 33.2 81.7 6 7
37 hrs.
1986 Feb 13 06:35 3.5/V Walhalla 34.8 82.9
5 3 68 hrs.
1986 Dec 11 09:06 3.0/III Tamasee 34.9 82.9
10 10 18 hrs.
1992 Aug 21 __:__ 4.1/VI Charleston 32.9 80.0 9 -6 -6 9 hrs.!
1995 Apr 17 08:46 3.9/VI Charleston 32.9 79.9 2e 1
40 hrs.
Bold type indicates a "Seismic Window" of increased, potential for earthquakes.
Underlined items for quakes within perigean spring tides with Sychroneity less than 37 hrs.
Mg = Magnitude
Int = Mercalli Intensity
Lat = North Latitude
Lon = West Longitude
e = 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)
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