seismic activity
📖 Definitions
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The occurrence, frequency, and magnitude of earthquakes or other vibrations within the earth's crust.; Sudden, large-scale, or disruptive changes or events within a social, political, or economic system.
💬 Examples
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The region has experienced increased seismic activity due to the movement of tectonic plates.
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The sudden resignation of the CEO caused seismic activity within the company's stock market value.