Definitions

1. noun

A series of earthquakes occurring at irregular intervals, or a sudden movement or shock

“The region is prone to seismic activity due to its location near a fault line.”

2. noun

A sudden movement or shock, especially in the field of business or finance

“The company experienced a seismic shift in its market position after the merger.”

3. noun

A significant or influential event or movement

“The new technology had a seismic impact on the music industry.”