ALABAMA EARTHQUAKES AND SEISMIC WINDOWS


Date UTC Mg/Int Epicenter Lat Lon FM Per NM Sync Notes
1905-Jan-27 12am
5?/VII
Gadsden 34 86 6 24 21 92 hrs Felt 300 mi.away, KY
1916-Oct-18 22:03
5.1/VII
Irondale/Jefferson Co. 33.5 86.5 6 9   71 hrs Many chimneys down.
1927-Jun-16 12:00
3.5?/V
Gurley/Scottsboro 34.7 86 3 19 17 50 hrs Roaring sounds heard
1931-May-05 12:17
4.0/VI
Birmingham 33.7 86.6 3 4   44 hrs Felt GA - SC
1939-May-05 02:45
4/VI
Anniston 33.7 85.8 0 3   74 hrs Many ran outside
1957-Apr-23 09:24
4.2/VI
Birmingham 33.8 86.7 8 10   50 hrs Thunderous sounds, 1 day late
1959-Aug-12 18:06
3.8/ VI
Huntsville/Madison Co. 34.8 86.6 23 25 8 52 hrs Felt TN, 1 day late
1971-Oct-01 18:49
4._/VI
Lake City/N.E. Arkansas 35.8 90.4   -3 -3 3 hrs Felt MO, KY, AL, TX, 2 days early
1974-Dec-10 06:01
3.0/V
Huxford 31.4 87.5 -3 1   4 days 2 days early
1975-Aug-29 04:23
4.4/VI
Palmerdale/Jefferson Co. 33.7 86.6 8 -7 -7 10 hrs Felt So. TN, 1 day late
1976-Mar-25 00:41
4.9/VI
N.E. Arkansas 35.6 90.5 12 13 -3 27 hrs Felt in 8 states, 2 days early
1977-May-04 01:60
3.6/V
Melvin/Yantley 32 88.4 1 1   16 hrs Furniture shifted
1978-Dec-11 02:07
3.5/V
Gilbertown/Melvin 32 88.5 -4 9 11 48 hrs Felt Camichael, MS
1980-Jul-27 18:52
5.3/VII
Bath Co./Kentucky 38.2 83.9   0e 2 59 hrs Max. ever in Kentucky
1989-Aug-20 00:03
3.9/VI
Littleville/Colbert Co. 34.7 87.6 4 6   49 hrs Felt NW AL - TN
1997-Oct-24 08:35
4.9/VII
Jackson 31.2 87.3 8 10   25 hrs Felt FL - MS, 1 day late
1997-Oct-26 23:26
3.7/V
Jackson/SW Alabama 31.0 87.3 10 12   25 hrs Felt FL - MS
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 (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, Oct 28, 1997
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