9/56 YEAR CYCLE: ICELANDIC EARTHQUAKES

Appendix 17

MAJOR ICELANDIC EARTHQUAKES: 1706-2000

Appendix for the paper 9/56 year Cycles: Earthquakes & Volcanoes.

The Icelandic Meteorological Office published a listing of major Icelandic earthquakes between 1706 and 2000. There were 25 events with a magnitude =>6.0, NONE of which occurred in the four months between September 10 and January 10. Of the total figure, 19 fell in the 8 months beginning January 15 of those years in the 9/56 year grid shown in Table B this appendix, a finding that was significant (p < .001).

Additionally, 11 major quakes were recorded in only 6 56 year sequences in an 9/56 year pattern. These all happened in the 2.2 months ended June 2 and in the month to September 8.

			Sq 06		Sq 24
			1710	1719	1728
1739	1748	1757	1766 0405 0809	1775	1784 0814 0816
1795	1804	1813	1822	1831	1840
1851	1860	1869	1878	1887	1896 0826 0827 0905 0905 0906
1907	1916	1925	1934 0602	1943	1952
1963 0328	1972	1981	1990	1999	2008
Years in bold experienced a major earthquake (mag =>6.0) in the 2.1 months commencing Mar 28. Years in bold experienced a major earthquake (mag =>6.0) in the 1.0 month commencing Aug 09.

In the following 12 56 year sequences, most events happened in the 3.5 months commencing January 25. Only one quake on August 9, 1724 did not conform to this finding.

					1706 0420	1715	1724 0809	1733	1742	1751	1760
1717	1726	1735	1744	1753	1762	1771	1780	1789	1798	1807	1816
1773	1782	1791	1800	1809	1818	1827	1836	1845	1854	1863	1872 0418 0418
1829 0202	1838	1847	1856	1865	1874	1883	1892	1901	1910 0222	1919	1928
1885 0125	1894	1903	1912 0506	1921	1930	1939	1948	1957	1966	1975	1984
1941	1950	1959	1968	1977	1986	1995	2004
1997	2006
Each 56 year sequence is separated by an interval of 9 years. Years in bold experienced a major earthquake (mag => 6.0) in the 3.5 months commencing January 25. Source of Raw Data: Icelandic Meteorological Office.

Table A MAJOR ICELANDIC EARTHQUAKES (mag =>6.0): 1700-2000
Date/Time	Lat/Long	Mag	Depth	Location
1706-04-20 09:00	64.0 -21.2	6.0	0 km	V af Hverager�i
1724-08-09 00:00	63.9 -21.5	6.0	7 km	NV af �orl�ksh�fn
1732-09-07 06:00	64.0 -20.1	6.7	8 km	ASA af �rnesi
1734-03-21 00:00	63.9 -20.8	6.8	8 km	VSV af �j�rs�rbr�
1766-04-05 09:00	64.0 -19.9	6.0	11 km	V af Heklu
1766-09-09 19:00	64.0 -21.1	6.0	4 km	A af Hverager�i
1784-08-14 16:35	64.0 -20.5	7.1	10 km	NA af �j�rs�rbr�
1784-08-16 15:13	63.9 -20.9	6.7	7 km	SA af Selfossi
1829-02-02 21:45	63.9 -20.0	6.0	19 km	VSV af Heklu
1872-04-18 10:00	66.0 -17.5	6.3	8 km	VSV af H�sav�k
1872-04-18 11:00	66.2 -17.9	6.3	4 km	NV af Flatey
1885-01-25 10:50	66.1 -16.9	6.3	20 km	VNV af �sbyrgi
1896-08-26 21:50	64.0 -20.2	6.9	5 km	SSA af �rnesi
1896-08-27 09:30	64.0 -20.1	6.7	8 km	ASA af �rnesi
1896-09-05 23:30	63.9 -21.0	6.0	4 km	S af Selfossi
1896-09-05 23:35	64.0 -20.6	6.5	8 km	NNA af �j�rs�rbr�
1896-09-06 02:00	63.9 -21.2	6.0	9 km	ANA af �orl�ksh�fn
1910-01-22 07:48	66.5 -17.0	7.1	32 km	NV af K�paskeri
1912-05-06 18:00	63.9 -20.0	7.0	19 km	VSV af Heklu
1929-07-23 18:43	63.9 -21.7	6.2	9 km	SSV af Bl�fjallask�la
1934-06-02 13:43	66.0 -18.5	6.2	3 km	NNA af Dalv�k
1963-03-28 00:16	66.3 -19.6	7.0	30 km	NA af Hrauni_�_Skaga
1976-01-13 13:29	66.2 -16.6	6.2	13 km	SSV af K�paskeri
2000-06-17 15:44	64.0 - 20.4	6.4	6 km
2000-06-21 00:51	64.0 - 20.7	6.1	5 km
Years in bold experienced a major earthquake (mag =>6.0) in the 8 months commencing January 15 of those years in Table B this appendix. Source: Icelandic Meteorological Office.

Table B 9/56 YEAR CYCLES & ICELANDIC EARTHQUAKES (mag =>6.0): 1706-2000
															1706	1715	1724	1733	1742	1751	1760
									1708	1717	1726	1735	1744	1753	1762	1771	1780	1789	1798	1807	1816
		1701	1710	1719	1728	1737	1746	1755	1764	1773	1782	1791	1800	1809	1818	1827	1836	1845	1854	1863	1872 **
1739	1748	1757	1766 **	1775	1784 **	1793	1802	1811	1820	1829	1838	1847	1856	1865	1874	1883	1892	1901	1910	1919	1928
1795	1804	1813	1822	1831	1840	1849	1858	1867	1876	1885	1894	1903	1912	1921	1930	1939	1948	1957	1966	1975	1984
1851	1860	1869	1878	1887	1896 *****	1905	1914	1923	1932	1941	1950	1959	1968	1977	1986	1995	2004
1907	1916	1925	1934	1943	1952	1961	1970	1979	1988	1997	2006
1963	1972	1981	1990	1999	2008
Each 56 year sequence is separated by an interval of 9 years. Years in bold experienced a major earthquake (mag =>6.0) in the 8 months commencing January 15 of those years in the table. Source of Raw Data: Icelandic Meteorological Office.