Where does “東海地震” come from?

東海地震 (Japanese) comes from Japanese 地震, from Japanese 地, from Middle Chinese 地.

東海地震 (Japanese): A megathrust earthquake occurring at Suruga Trough off the coast of Shizuoka Prefecture in Japan once in a few centuries

Definitions

  1. A megathrust earthquake occurring at Suruga Trough off the coast of Shizuoka Prefecture in Japan once in a few centuries

Ancestry of “東海地震”, step by step

東海地震 traces back through two separate lines of ancestry.

via Japanese 地震

StepLanguageWordMeaning
1Japanese地震an earthquake
2Japanese地earth, dirt; fabric, cloth; territory
3Middle Chinese地—

via Japanese 東海

StepLanguageWordMeaning
1Japanese東海—
Every word from Middle Chinese 地 →Every word from Japanese 地 →Every word from Japanese 地震 →