GOOD FRIDAY ( MAR, 27, 1964 ) 



SUMMER SOLSTICE 

 ( JUNE 21, 1964 ■ 



(JULY 2,1964)^ 



SBON I NOV I, 1755 ) 



Figure 29 Pictorial View of Relative Positions of Earth, Moon, 

 and Sun on Occasions of Notable Great Earthquakes. 



Editor's note: Later investigation (l2 May I968) • appears to 

 indicate that this figure is not wholly accurate and that the 

 arguments expressed regarding "syzygy triggering" may not be 

 tenable. The Coastal Engineering Research Center, however, 

 feels that the concepi; is worthy of consideration. 



VERTICALLY INWARD - 

 LUNI-SOLAR EARTH TIDEN 

 FORCE 





EQUATORIAL PLANE WITH 

 RESPECT TO SUN AND MOON 

 (GREAT CIRCLE ANTINODE OF 

 SPHEROIDAL FORCED OSCILLA- 

 TION WITH RESPECT TO LUNI- 

 SOLAR AXIS 1 



Figure 30 Schematic Diagram of the Earth, Moon, and Sun Relationship 

 at the Time of the Alaskan Earthquake of March 27, 19b4 . 



42 



