Definition, Meaning & Synonyms

megaquake

noun

/ˈmɛɡəˌkweɪk/

Definition

A megaquake is an extremely powerful earthquake, typically defined as one that has a magnitude of 7.0 or higher on the Richter scale.

Examples

The 2011 Japan megaquake caused a massive tsunami that affected thousands of lives.
Scientists are studying past megaquakes to better understand their impact on Earth’s geology.

Meaning

The term ‘megaquake’ refers to a seismic event that releases a tremendous amount of energy, resulting in significant ground shaking and potentially widespread destruction.