Year i AD

Date ${\text{t}}_{\text{e}}\text{(i},\text{loc}\text{.min}\text{.)}$ of the strongest earthquake

Magnitude ${\text{M}}_{\text{up}}\text{(i,loc}\text{.min}\text{.)}$ of the strongest earthquake

Region of the strongest earthquake

The realized necessary condition 2.1 or 2.2

${\Delta }_{\ast }(\text{i})=\left|{\text{t}}_{\text{e}}\text{(i},\text{loc}\text{.min}\text{.)}-{\text{t}}_{\ast }{\text{(τ}}_{\text{c,r}},\text{i)}\right|$ ,

in days

1952 AD

November 4, 1952 AD = 1952.84599589 AD

9.0

off the east coast of the Kamchatka Peninsula, Russia

2.2 perfectly

7.55 days before the calculated date

${\text{t}}_{\ast }{\text{(τ}}_{\text{c,r}},\text{1952)}=1952.\text{86666666}\text{AD}$

1960 AD

May 22, 1960 AD

= 1960.39151266 AD

9.5

Bio-Bio, Chile

2.1 perfectly

33.53 days before the calculated date ${\text{t}}_{\ast }{\text{(τ}}_{\text{c,r}},\text{1960)}=1960.48333333\text{AD}$

2004 AD

December 26, 2004 AD

= 2004.98836413 AD

9.1

off the west coast of northern Sumatra

2.2 perfectly

89.47 days before the calculated date

${\text{t}}_{\ast }{\text{(τ}}_{\text{c,r}},\text{2005)}=\text{2005}\text{.23333333}\text{AD}$