In order to use seismological data to learn about the structure of the Earth we have to understand the formation of the Earth. In particular the creative act on the 2nd day which was the inception of gravity.
The Beginning of the Earth
The Core Accretion Model
They key to understanding the inception of gravity as the creative act of the second day is the synchronicity between stretching out the heavens and establishing the foundations of the Earth. One command did both.
Job 28:3 Translation
There is a description of the core accretion model in the Hebrew text of Job 28:3. We make a systematic survey of the text, and bring forth this meaning.
Death-like shadow: וְצַלְמָֽוֶת – tsalmaveth
The shadow of death: וְצַלְמָֽוֶת - tsalmaveth [death-like shadow, deep shadow] meaning to roll or tumble down. i.e. sink, sinking in the shadow of death.
Gloom of the underworld: אֹ֣פֶל – ophel
It's surrounded by stones in thick darkness. What darkness? The gloom of the underworld, sheol, the underworld realm of the dead. The deep places of the Earth.
A stone: אֶ֖בֶן – eben
Generally; the common stone of the field; a stone which may be thrown with the hand.
Surround: חוֹקֵ֑ר – chagar
The hollow place or the inside of a chariot; also of an altar where the fire is kept. Mass is surrounded by the hollow interior of the Earth where there's fire?
He, she, it: ה֣וּא – hu or hi
It, referring back to the subject of Part A of the couplet in Job 28:3, is either mass or time.
Shell: תַּ֭כְלִית – taklit
In this case shell is referring to a layer of sediment, or layers of sediment which are stratified.
To hang together: וּֽלְכָל־ – ulekal
Whoever translated Hebrew knowing that it's describing the core accretion process? No one. Where we're going is: at the end of time all darkness will sink down into a mass.