Related Clues:

• It's a fault's fault
• 2 or 3, maybe, on the Richter scale
• Shaking
• Quake
• Bad vibration?
• Sign of nervousness
• Aftershock
• Shake
• Not a good vibration?
• Earth mover
• Richter scale reading
• Nervous excitement
• Mild quake
• Richter scale event
• Pre-eruption warning