AnnOMaly:
The difficulty is going to be, though, that the archaeologists say, "Yes, the debris appears in this stratum which is c. Jeroboam II level. Jeroboam II reigned, of course, in the mid-8th century BCE as has been established. Ergo, the debris dates to the mid-8th century BCE."
That doesn't seem to be the case. Danzig is fairly liberal with his complaints, but says nothing about the geologists allegedly 'trying' to make the earthquake fit the time period of Jeroboam. Austin quotes Yadin, saying that, "Earthquake debris at six sites (Hazor, Deir 'Alla, Gezer, Lachish, Tell Judeideh, and 'En Haseva) is tightly confined stratigraphically to the middle of the eighth century B.C., with dating errors of ~30 years" (italics added; the error is given as 25 years in some sources). The margin for error provided isn't consistent with merely 'trying' to make the geological dating of the strata 'fit' the traditional dating of Jeroboam's reign, but on geological methods. The fact that the earlier sources suggest 750 BCE also doesn't help the suggestion that they were merely trying to 'fit' the reign of Jeroboam, whose reign is traditionally dated as ending in 753BCE. The older geological estimates (750 ± 30) place the earthquake in the range of 780BCE to 720BCE, and the more recent estimates (760 ± 25) place it in the range of 785BCE to 735BCE. Neither of those ranges equates to the reign of Jeroboam, though it overlaps.