Appendix 4

9/56 YEAR CYCLE: CHINESE EARTHQUAKES


Moon Sun Finance


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


A listing of 34 major Chinese earthquakes (mag =>7.0) in the 1900 to mid 2008 era was compiled from data obtained from the National Geophysical Data Center. Of the total figure, 14 occurred in the 12 months beginning July 15 of those years in Table A (marginally significant p < .05). Curiously, 7 earthquakes happened in the 1.5 months commencing July 15 of those years in Table A. This arises from seasonality - of the total 34 Chinese earthquakes, 12 occurred in the 50 days between July 10 and August 29, which was in contrast to an expected 4.6. 

Major Chinese earthquakes were least likely to happen in Sequences 22 to 36 of the 9/56 year cycle (see Table B), with only one event in 15 56 year sequences (significant p < .01).

 

Table A          9/56 YEAR CYCLE: CHINESE QUAKES 1900 - 2008
Year beginning July 15

Sq
52
Sq
05
    Sq
32
Sq
41
Sq
50
Sq
03
Sq
12
Sq
21
    Sq
48
Sq
01
                    1902
0822
1911 1920
1216
1929
        1904

1913

1922
230324

1931
0810

1940

1949

1958 1967

1976
0727
0728

1985
0823
1924
230324

1933
0825

1942 1951
1118
1960

1969
0718
700104

1978

1987 

1996 2005        
1980

1989

1998  2007
080320
080512
                   

The 56 year sequences in the table are separated from each other by an interval of 9 years.
Years in bold contained major Chinese earthquakes in the 12 months commencing July 15.
Dates expressed as YYYYMMDD. 
Sources of Raw Data
: National Geophysical Data Center. Parameters:  China, 1700 to 2004. Mag 7.0 to 9.9
US Geological Survey. Earthquakes post  2004.

 

 

Table  B      THE 9/56 YEAR CYCLE: CHINESE QUAKES Sqs 22 to 36
Year commencing July 15

22

31

40

49

02

11

20

29

38

47

56

09

18

27

36

1908

1901

1910

1919

1928

1937

1946
470317

1955

1964

1903

1912

1921

1930

1939

1948

1957

1966

1975

1984

1993

2002

1950

1959

1968

1977

1986

1995

2004

2008

Chinese earthquake highlighted in bold fell in the year commencing July 15

 

MAJOR CHINESE EARTHQUAKES: 1900 - mid 2008

Year

Month

Day

Region

Mag

1902

8

22

S XINJIANG

8.1

1906

12

22

XINJIANG

8.3

1914

8

4

XINJIANG WEIWUER ZIZHIQU PROVINCE(SINKIANG)

7.5

1916

8

28

TIBET

7.7

1917

7

31

NE

7.5

1918

2

13

GUANGDONG PROVINCE

7.3

1920

12

16

GANSU & SHANXI PROVINCES

8.5

1923

3

24

SICHUAN PROVINCE

7.3

1925

3

16

YUNNAN PROVINCE

7.1

1927

5

22

GANSU PROVINCE

8.0

1931

8

10

XINJIANG WEIWUER ZIZHIQU PROVINCE

8.0

1932

12

25

GANSU PROVINCE

7.6

1933

8

25

SICHUAN PROVINCE

7.4

1937

1

7

QINGHAI PROVINCE

7.6

1947

3

17

QINGHAI PROVINCE

7.7

1948

5

25

SICHUAN PROVINCE

7.3

1951

11

18

TIBET

7.9

1952

8

17

TIBET (XIZANG PROVINCE)

7.5

1955

4

14

SICHUAN PROVINCE

7.4

1966

3

22

NE

7.6

1969

7

18

NE, OITA, KYUSHU

7.6

1970

1

4

YUNNAN PROVINCE

7.5

1973

2

6

SICHUAN PROVINCE

7.7

1973

7

14

TIBET

7.5

1975

2

4

NE: YINGTAO

7.4

1976

7

27

NE: TANGSHAN

8

1976

7

28

NE

7.4

1985

8

23

S XINJIANG: WU QIA

7.3

1995

7

11

CHINA/MYANMAR: LANCANG, MENGLIAN, XIMENG

7.1

1997

11

8

XIZANG PROVINCE

7.9

2001

11

14

QINHAI, XIDATAN

8

2002 06 28 Priamurye, NE China 7.3
2008 03 20 Xinjiang - Xizang border 7.2
2008 05 12 Eastern Sichuan 7.9

Events highlighted in bold fall in the year beginning July 15 of those years in Table A.
Sources:
National Geophysical Data Center. Significant Earthquake Database Search. Parameters: China. 1900 to 2004. Mag: 7.0 to 9.9. An earthquake was only entered once. Several quakes were listed twice or more in the NGDC listing.
Quakes post 2004 were based on the listing by the United States Geological Survey.