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"The third day", Abib 16, consisted of the third "daylight of the Sabbath in" which, when "mid-afternoon, there came a great earthquake", and Jesus rose from the dead, and before it, the third darkness or night of "the Sabbath the women began to rest".
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There was an earthquake when Jesus died on the cross, however, there was also great turmoil in and around the city of Jerusalem when He died, just as there was great turmoil on the Sunday morning when the Angel descended from heaven to roll back the stone to open up the tomb to reveal that Christ had indeed risen.
G:4578 is best understood to have the meaning of commotion, i.e. turmoil.
The same Greek word, is found in the following passages: - Matthew 8:24, 28:2, Acts 16:26, Revelation 6:12, 11:13, 11:19, 16:18, 16:18
However G:4579 is best understood as the rocks shaking, i.e. an earthquake.
Matthew 27:51-54: - 51 Then, behold, the veil of the temple was torn in two from top to bottom; and the earth (G:1093) shook, (i.e. by definition, an earthquake), (G:4579) and the rocks were split, 52 and the graves were opened; and many bodies of the saints who had fallen asleep were raised; 53 and coming out of the graves after His resurrection, they went into the holy city and appeared to many.
54 So when the centurion and those with him, who were guarding Jesus, saw the turmoil (G:4578) and the things that had happened, they feared greatly, saying, "Truly, this was the Son of God!"
And also: -
Matthew 28:1-4: - 28:1 Now after the Sabbath, as the first day of the week began to dawn, Mary Magdalene and the other Mary came to see the tomb. 2 And behold, there was great turmoil (G:4578); for an angel of the Lord descended from heaven, and came and rolled back the stone from the door, and sat on it. 3 His countenance was like lightning, and his clothing as white as snow. 4 And the guards shook (G:4579) for fear of him, and became like dead men.
It is interesting that γῆ, G:1093, in Matthew 27:51 occurs 38 times in the New Testament, and it has been translated as, ground, earth, land, country, soil . . . . , so does that mean that the whole earth shook, i.e. that all of creation shook, or was the shaking of the earth simply confined to the area in and around the Temple/Jerusalem. I am confident that we do not know the answer to this question and will not be able to resolve it the coming of Eternity. How the earth shook will remain a mystery that cause the curtain in the temple to be torn from top to bottom and the tombs to be opened.
It seems to me that your understanding of what the scriptures have stated is very fluid.
Shalom