地学雑誌 Journal of Geography 02 11 1 (2)222―232 20 火山で生じる異常現象と近隣地域で起きる大地震の関連性 ―その事例とメカニズムにかんするレビュー─ 小 山 真 * 人 Mechanical Coupling Between Volcanic Unrests and Large Earthquakes: A Review of Examples and Mechanisms Masato KOYAMA * Abstract Previous studies have reported many examples of possible mechanical coupling between volcanic unrests and large earthquakes, which occurred around the volc