"微震" meaning in Japanese

{
  "forms": [
    {
      "form": "微震",
      "ruby": [
        [
          "微",
          "び"
        ],
        [
          "震",
          "しん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "bishin",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "びしん"
      },
      "expansion": "微(び)震(しん) • (bishin)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "63 37",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "56 44",
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "60 40",
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "63 37",
          "kind": "other",
          "name": "Japanese terms read with on'yomi",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "63 37",
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "54 46",
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "61 39",
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "faint tremor; weak earthquake; feeble earth tremor"
      ],
      "id": "en-微震-ja-noun-k62to7Qd",
      "links": [
        [
          "earth tremor",
          "earth tremor"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "ja",
          "name": "Seismology",
          "orig": "ja:Seismology",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "54 46",
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "coordinate_terms": [
        {
          "word": "無感"
        },
        {
          "word": "微震"
        },
        {
          "word": "軽震"
        },
        {
          "word": "弱震"
        },
        {
          "word": "中震"
        },
        {
          "word": "強震"
        },
        {
          "word": "烈震"
        },
        {
          "word": "激震"
        }
      ],
      "glosses": [
        "former classification corresponding to intensity 1 (JMA scale)"
      ],
      "id": "en-微震-ja-noun--kUwX2Ed",
      "links": [
        [
          "seismology",
          "seismology"
        ]
      ],
      "raw_glosses": [
        "(seismology) former classification corresponding to intensity 1 (JMA scale)"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences",
        "seismology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[bʲiɕĩɴ]"
    }
  ],
  "word": "微震"
}

{
  "categories": [
    "Japanese entries with incorrect language header",
    "Japanese lemmas",
    "Japanese links with redundant alt parameters",
    "Japanese links with redundant wikilinks",
    "Japanese nouns",
    "Japanese terms read with on'yomi",
    "Japanese terms spelled with secondary school kanji",
    "Japanese terms spelled with 微 read as び",
    "Japanese terms spelled with 震 read as しん",
    "Japanese terms with 2 kanji",
    "Japanese terms with IPA pronunciation",
    "Japanese terms with IPA pronunciation missing pitch accent",
    "Japanese terms with non-redundant non-automated sortkeys",
    "Japanese terms with redundant sortkeys",
    "Pages with 2 entries",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "微震",
      "ruby": [
        [
          "微",
          "び"
        ],
        [
          "震",
          "しん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "bishin",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "びしん"
      },
      "expansion": "微(び)震(しん) • (bishin)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "faint tremor; weak earthquake; feeble earth tremor"
      ],
      "links": [
        [
          "earth tremor",
          "earth tremor"
        ]
      ]
    },
    {
      "categories": [
        "ja:Seismology"
      ],
      "coordinate_terms": [
        {
          "word": "無感"
        },
        {
          "word": "微震"
        },
        {
          "word": "軽震"
        },
        {
          "word": "弱震"
        },
        {
          "word": "中震"
        },
        {
          "word": "強震"
        },
        {
          "word": "烈震"
        },
        {
          "word": "激震"
        }
      ],
      "glosses": [
        "former classification corresponding to intensity 1 (JMA scale)"
      ],
      "links": [
        [
          "seismology",
          "seismology"
        ]
      ],
      "raw_glosses": [
        "(seismology) former classification corresponding to intensity 1 (JMA scale)"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences",
        "seismology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[bʲiɕĩɴ]"
    }
  ],
  "word": "微震"
}