Jeffro, you say first century fulfillment. I don't see it, not even at a stretch.
As indicated, Jesus’ words according to Luke (21:11 CJB) will become relevant: “there will be great earthquakes [Gr. σεισμοί τε μεγάλοι, lit. mega-quakes] there will be epidemics and famines [Gr. λιμοὶ καὶ λοιμοι, lit. hunger, famine and plague, pestilence] in various places, and there will be fearful sights and great signs from Heaven [Gr. ἀπ᾽ οὐρανοῦ σημεῖα μεγάλα, lit. from heaven spectacular signs or portents].” The latter is a transitional phrase. It finalizes the first phase of Jesus’ composite sign, in order to pave the way for the second, i.e., the breaking of the sixth seal. Even in Pre-Tribulation times there will be “terrifying sights and great signs from heaven,” for all to see (Luke 21:11 CSBO; cf. Joel 2:30 [3:3]; Acts 2:19). The second phase is the prelude to the Tribulation:
25 Also, there
will be signs in sun and moon and stars, and on the earth anguish of nations,
not knowing the way out because of the roaring of the sea and [its] agitation,26 while men
become faint out of fear and expectation of the things coming upon the
inhabited earth; for the powers of the heavens will be shaken. 28 But as these
things start to occur, raise yourselves erect and lift YOUR heads up, because
YOUR deliverance is getting near (Luke 21:25, 26, 28; cf. Rev. 6:12-17).