"東海地震" meaning in Japanese

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      "expansion": "東海 (“Tōkai”) + 地震 (“jishin”)",
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  "etymology_text": "東海 (“Tōkai”) + 地震 (“jishin”)",
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    {
      "form": "東海地震",
      "ruby": [
        [
          "東",
          "とう"
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          "海",
          "かい"
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          "地",
          "じ"
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        [
          "震",
          "しん"
        ]
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      "glosses": [
        "A megathrust earthquake occurring at Suruga Trough off the coast of Shizuoka Prefecture in Japan once in a few centuries."
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          "Shizuoka",
          "Shizuoka"
        ],
        [
          "Japan",
          "Japan"
        ]
      ]
    }
  ],
  "word": "東海地震"
}

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  "etymology_text": "東海 (“Tōkai”) + 地震 (“jishin”)",
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      "form": "東海地震",
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          "東",
          "とう"
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          "海",
          "かい"
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          "地",
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          "震",
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