Possible Clues:

• Shakiest point of long poem with short introduction
• Piece rent asunder where there was disturbance below
• Ruined recent pie? You can't get more shocking than that!
• Pine tree destroyed around about earthquake location
• Heart as impressive, incomplete dish
• Awesome course briefly in focus
• Pine tree, conifer originally shaken where the ground first shook
• Ridiculous pretence about island being focus for seismologist?
• Where a crisis is most intense
• Fantastic main course not finished, the place being most shaky