OK, I can see the story now; thanks for sharing it.
You aren't using the subtitle field on the cover. What if you used the title for Greek and the subtitle for the English? Also, you probably only need to include the date once, so that would simplify things a bit.
Title : Σεισμός Λέσβου 12/6/2017
Subtitle: Lesvos Earthquake
Owen Evans
Lead Product Engineer | StoryMaps