Astronomical Earthgrid Spacetime Mapping of the
1964 Alaska 9.3 Earthquake

Nick Anthony Fiorenza


1964 Alaska 9.3 Earthquake Map

The 1964 Alaska 9.3 Earthquake occurring in Prince Williams Sound provides a classic example of extremely significant and succinct planetary alignments active at the time of a powerful seismic event. It demonstrates how seismic resonances increase when there is in increase in the significant planetary geometric configurations occuring along with an equally significant orientation of the primary planes that create the spherical astronomical geometry of a location at any given moment.

"There were hundreds of aftershocks in the first weeks following the main shock. In the first day alone, eleven major aftershocks were recorded with a magnitude greater than 6.0. Nine more struck over the next three weeks. In all, thousands of aftershocks occurred in the months following the quake, and smaller aftershocks continued to strike the region for more than a year." (USGS)

Alaska 9.3 Earthquake

Time: 1964-03-28 03:36:16 (UTC)
Local Time: March 27, 5:36:16 PM AHST
Location: 60.908°N 147.339°W depth=25.0 km

Alaska 1964 Earthquake Chart


Full Moon: March 28 2:48:20 UT (Lunar Perigee: Mar 17 15:26)
Earthquake: March 28 03:36:16 UT

Principal Planetary / Local Cross Alignments:

The Full Moon is square to the Lunar Nodes: The Sun when square to the lunar nodes, in general, produces an unstable resonance. Occuring on a Full Moon is more rare, thus creating a Sun-Moon Lunar Nodes Grand Square. The geometric orientaion of the lunar nodes is always significant durring seismic events.

This Grand Square configuration aligns with the Local Cross; i.e., the location's horizon plane (ASC-DSC) and the location's meridian (MC-IC). The Sun-Moon lies within the "immediate foreground (active ±7° orb around the ASC and DSC nodes). The meridian (MC-IC) conjoins the Zenith and Nadir nodes, thus exactly perpendicular to the horizon plane. The Lunar Nodes also lie in the active" immediate foreground" of the MC-IC axis.

Ceres conjoins the IC and South Lunar Node. Ceres is most often in a principal placement in charts of significant seismic and ecological events (as is recently discovered Eris).

The Local Cross, and Sun-Moon / Ceres-Lunar Nodes, are also in perfect alignment with Earth's Precessional Cross (galactic equatorial axis (GEN) and the vernal axis (VP)). This is extremely significant and is discussed in brief on the EGM home page and is demonstrably illustrated on the Gravity Wave Mapping page.

The POF and the Vertex are conjoined (rare) and are aligned with the Grand Square, Earth's Precessional Cross and the Local Cross. This is another extremely significant alignment. The vertex (and its opposite anti-vertex) are nodes created by the intersection of the location's prime vertical plane and the ecliptic plane. The POF is a space-time mathematical point in the ecliptic defined the Sun-Moon angle/partile (the resonance of where the event occurs in the lunar cycle (time) with respect to the horizon plane of the location (space), the significance of which is also discussed on the EGM home page. The POF is the final parameter most often defining an event to within minutes if not seconds.

Notice also the Sun approaching its conjunction with Eris (in a 3° / 3-day active orb). Mars is also is also conjoined the vernal axis, within a tight 3° orb in the immediate foreground of the horizon plane (DSC). The faster moving planets act as triggers to the longer term planetary alignments created by the outer slower moving planets.

Heliocentric Considerations

Time periods around primary planetary alignments and aspects occurring in the longer-term planetary cycles created by the outer slower moving planets are always significant to monitor for the potential of increased seismicity. The Uranus-Pluto cycle is significant to consider.

Alaska 1964 Earthquake Chart

Uranus is approaching its synod with Pluto, which at the time of this Earthquake is less than 5° away. The Synod occurs on January 7, 1966, which marks the end of the previous and start of the new Uranus-Pluto 138-year cycle. This synod expresses on Earth through three geocentric conjunctions, occurring on October 9, 1965, April 4, 1966, and June 30, 1966. Thus, this event occurred in the potent 7 crescendo leading into the Uranus-Pluto synod.

It is not surprising that there were hundreds of aftershocks in the first few weeks weeks following the main earthquake and thousands of aftershocks occurring in the months that followed.

Saturn also makes heliocentric oppositions with Uranus and Pluto near the time of the Uranus-Pluto synod, marking the midpoints in the Saturn-Uranus 44-year cycle and Saturn-Pluto 37-year cycle. The time surrounding the Saturn -Sun-Uranus-Pluto alignment, with the much smaller orbits of the inner planets sandwiched in the long-wave resonances created by these outer planets, is significant to consider as well. In fact there are several coinciding alignments occurring at this time, which can be seen on the "Outer Planet Synodic Cycles" chart.

Uranus and Pluto are in their last geocentric retrogrades at the time of the quake, during which began their last annual synod cycles with Earth before the start of the new 138-year cycle. The Earth-Uranus synod occurred on February 27, 1964 and the Earth-Pluto synod occurred on March 3, 1964 (with the quake occurring on March 27). This is also significant because the short-term annual cycles become more resonant surrounding transitions in the much longer term 138-year cycle. This is directly analogous to a climatic crescendo occuring in a musical composition. It is important think in terms of how geometry creates harmonics when considering planetary and solar system resonances. (Ref: Inter-planetary Wave Coupling Resonances)

Ceres is also making its first square in the Ceres-Uranus and Ceres-Pluto cycles, creating another strong resonance. It is 4° 28' past its square with Uranus, which occurred on March 5, 1964, and 00° 12' to its square with Pluto, which occurred on March 29, 1964. The few week period around these squares would have been another signifier to consider in mapping seismic potential at the time.

Earth and Eris are also near their heliocentric opposition, occuring on March 31, 1964, with the quake occuring just 3° to the opposition, in the potent crescendo leading into this alignment, another very significant consideration.


USGS Data page for the 1964 Alaska Earthquake and Seismotectonics of Alaska.

Video Description

"1964 Quake: The Great Alaska Earthquake" is an eleven minute video highlighting the impacts and effects of America's largest recorded earthquake. It is an expanded version of the four minute video "Magnitude 9.2". Both were created as part of USGS activities acknowledging the fifty year anniversary of the quake on March 27, 2014. The video features USGS geologist George Plafker, who, in the 1960's, correctly interpreted the quake as a subduction zone event. This was a great leap forward in resolving key mechanisms of the developing theory of plate tectonics. Landslide impacts and the extreme tsunami threat posed by these quakes are also discussed. Loss of life and destruction from the earthquake and accompanying tsunamis was the impetus for things like the NOAA Tsunami Warning Centers and the USGS Earthquake Hazards Program.
Published February 27, 2014 by USGS (Wikimedia Commons).