seismic

/ˈsaɪzmɪk/
adjective
  1. Relating to or caused by an earthquake or other vibrations of the earth.
    • Seismic activity can trigger tsunamis in coastal areas.
    • Engineers use seismic data to design safer buildings.
    • The region is known for its frequent seismic events.
  2. Having a very great or dramatic effect; momentous.
    • Her resignation had a seismic impact on the company's future.
    • The election results caused a seismic shift in the country's politics.
    • The discovery of the new planet was a seismic event in astronomy.
What does "seismic" mean? | whatsthatwordmean | whatsthatwordmean