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Skyquakes〔(【引用サイトリンク】title=MILITARY: Navy says it caused mysterious 'skyquake' )〕 are unexplained reports of a phenomenon that sounds like a cannon or a sonic boom coming from the sky. They have been heard in several locations around the world such as the banks of the river Ganges in India, the East Coast and inland Finger Lakes of the United States, as well as areas of the North Sea, Japan and Italy. ==Local names== Names (according to area) are: *Bangladesh: Barisal Guns〔T.D. LaTouche, "On the Sounds Known as Barisal Guns", Report (1890-8) of the annual meeting By British Association for the Advancement of Science , Issue 60, pp. 800.〕 *Italy: "brontidi", "marine", "balza", "lagoni".〔Eraldo Baldini, "Tenebrosa Romagna", Il Ponte Vecchio, 2014, p. 21.〕 *Japan: "uminari" *Netherlands and Belgium: "mistpoeffers" *Philippines: "retumbos" *United States: "Guns of the Seneca" around Seneca Lake & Cayuga Lake, Seneca guns in the Southeast US, and "Moodus noises" in lower Connecticut valley *elsewhere: "fog guns", "mistpouffers" They have been reported from: on an Adriatic island in 1824; Western Australia, South Australia & Victoria in Australia; Belgium; frequently on calm summer days in the Bay of Fundy, Canada; Lough Neagh in Northern Ireland; Scotland; Passamaquoddy Bay, New Brunswick & Cedar Keys, Florida & Franklinville, New York in 1896 & in northern Georgia in the United States. Their sound has been described as being like distant but inordinately loud thunder while no clouds are in the sky large enough to generate lightning. Those familiar with the sound of cannon fire say the sound is nearly identical. The booms occasionally cause shock waves that rattle plates. Early white settlers in North America were told by the native Haudenosaunee Iroquois that the booms were the sound of the Great Spirit continuing his work of shaping the earth. The terms "mistpouffers" and "Seneca guns" both originate in Seneca Lake, NY, and refer to the rumble of artillery fire. James Fennimore Cooper, author of ''The Last of the Mohicans,'' wrote “The Lake Gun” in 1850, a short story describing the phenomenon heard at Seneca Lake, which seems to have popularized the term. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Skyquake」の詳細全文を読む スポンサード リンク
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