aftershock

     

An aftershock is an earthquake that occurs after a previous earthquake (the main shock). An aftershock is in the same region of the main shock but is always of smaller magnitue strength. If an aftershock is larger than the main shock, the aftershock is redesignated as the main shock and the original main shock is redesignated as a foreshock. Aftershocks are smaller earthquakes formed as the displaced plate boundary tries to adjust itself.

Trivia about aftershock

  • Term for an earthquake that follows a larger one, originating at or near the same focus
  • It's a small earthquake or tremor that follows a major one
  • A small earthquake or tremor that occurs following a major one

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