2 ms·

I was thinking the same thing. A taylor swift concert where she tells everyone to sway their phones in unison might trigger this

• avs733 1y ago
  From memory I think earthquake oscillation profiles are higher frequency then swaying side to side is likely to be.
• Mogzol 1y ago
  I would assume the detections would need to come from a larger area than that to trigger it, like city sized.