地じ震しん前ぜん兆ちょう現げん象しょう

Related words

• 前ぜん兆ちょう

  A general term for omen or precursor; 地震前兆現象 specifically refers to earthquake-related precursor phenomena.

• 地じ震しん予よ知ち

  Earthquake prediction; 地震前兆現象 are the phenomena studied for prediction, while 地震予知 is the act or field of prediction itself.

Built from

Etymology

Compound of 地震 (earthquake), 前兆 (precursor, omen), and 現象 (phenomenon). A modern technical term with no known historical derivation beyond its components.